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Cost Accounting: What Are the Four Types of Costs: Fixed, Variable, Semi-Variable, and Step? Video

Author

Andrew Mccoy

Published Apr 20, 2026

00:20

budget The one you used to direct your day to

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day expenses There are four universally accepted types of costs

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for a regular person's budget rent Internet burritos and yes

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video games Now think about a company As with your

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budget well there are four types of costs that a

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company has to consider the categories air well slightly different

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though generally speaking of business has to keep in mind

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these four kinds of expenses fixed variable semi variable and

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step The categories correspond to how much the cost changes

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When the amount of output changes you increase the amount

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of stuff you make Well how much did that cost

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change Not at all Well then it's a fixed cost

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The cost changes proportionally with every increase in production Well

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then that's a variable cost somewhere in between wealth And

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that's semi variable or step Well you own a factory

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that makes toothpicks for Gap tooth people made from exotic

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hardwoods It's called the Dunaway Letterman Jack O Lantern company

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Tough to fit on a mug but well you like

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it You make one hundred thousand box of toothpicks a

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month and you want to ratchet that number up to

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one hundred twenty thousand boxes a twenty percent bump Well

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how will the increased production effect costs Well the actual

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cost will respond differently It depends on what category they

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fit into Will all of the costs go up twenty

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percent with this increase in production Yeah probably not Meaning

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the company will scale You'll produce more and you'll have

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higher profits So quick tour Here we go Fixed costs

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don't change at all They stay the same no matter

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how much you make that is fixed Like the toothpick

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grinding floor the sawdust sucking system the factory building itself

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fifty thousand units eighty thousand units a hundred thousand units

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that fixed cost is all the same If you decided

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to make eighteen million units Well then things would be

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different But at this scale or this level it's all

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fixed It's all the same The only big notable difference

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is that the fixed costs and of the factory is

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now amor ties over a larger number That is if

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it cost twenty grand a month to rent that factory

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and all the equipment in it If you made twenty

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thousand toothpick boxes a month while the fixed cost per

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box would be a buck if you made two hundred

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thousand creep pick boxes in a month we'll then the

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fixed cost per box would be a dime right That's

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fixed It doesn't change month after month after month as

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it Rikers and you basically save money when you have

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big volume output Because the cost per fixed foot is

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a flat variable costs are directly linked to the amount

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of output Factories making and variable you know varies well

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The increase in cost here is pro pie fortune All

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make one more to thicken the variable cost increase accordingly

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Why Well because you have to buy more raw wood

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supplies to put through the system you have to run

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the saws longer You have more sawdust to clean more

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packing material to by someone Someone more Output demands more

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input So think high brand fiber food something like that

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okay Next semi variable costs have elements of fixed and

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elements of variable costs Usually they have a fixed component

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and a variable component like the electricity to run the

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machine that puts the little plastic flew fi things at

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the end of the toothpicks Turning it on takes a

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certain amount of baseline electricity That part is fixed but

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then running the machine takes a little extra electricity for

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each flukey thing that gets installed That part is variable

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so the cost of running the machine gets thrown into

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the semi variable group A little bit fixed and a

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little bit variable Got it Alright last category step costs

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these increase in levels or scale The increase isn't proportional

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as with variable cost but instead takes place in steps

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like step cost might stay the same One output rises

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from one hundred thousand to one hundred twenty thousand boxes

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but then the one hundred twenty thousand and first item

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causes the step cost to bump up The cost jumps

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up in chunks and it stays the same for a

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while But then a certain point moves it to a

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higher level like you need a scale box Packer or

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you need some other thing that handles ten thousand maur

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twenty thousand fifty thousand more boxes because that's a whole

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different scale set of demands than if you were just

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packing a few hundred boxes You could do those manually

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You don't need the high tech robots then to do

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it right So it stayed same for a while as

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a staff and then it reaches another production point and

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then costs kind of zoom up well breaking down a

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little more detail fixed Think Brent your toothpick factory cost

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ten thousand month and rent It cost that much If

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you meant no toothpicks it cost that much If you

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make a thousand boxes of toothpicks and a cost that

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much If you make one hundred thousand box of toothpicks

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that rent is fixed it doesn't change To get the

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most out of a fixed costs You want to make

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his many things as possible As many Turbo Whittle five

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thousand machines is you could fit into the factory Maximizing

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volume production allows you to get the most out of

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those fixed costs of rent per dollars spent Okay you

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spent ten thousand dollars rent to make one toothpick while

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that becomes a really expensive to pick right You have

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to find someone to pay at least ten thousand dollars

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for it plus all the other costs related to making

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that one little wood sliver but make ten thousand or

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one hundred thousand boxes of toothpicks and your rent expense

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Well then is only a ten cents a box right

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Next type variable The type of expense increases proportionally without

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put raw material expense is a good example Each toothpick

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needs so much African black wood or South American cedar

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Yeah say you need three dollars worth of African black

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wood to make ten boxes of toothpicks Still making one

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box would cost thirty cents Making ten boxes will cost

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three bucks and making one hundred thousand will cost thirty

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grand and making one hundred thousand one boxes will cost

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thirty thousand and three dollars of the African Blackwood stuff

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right Because the same cost and no matter what volume

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you order the cost goes up in what's called a

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linear progression A straight line on a graph Labor can

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also work this way but it depends on how you

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pay your workers Pay them on a per piece basis

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And it's completely variable Bob Splinter gets paid a penny

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for every toothpick he makes He makes a thousand toothpicks

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He gets a ten box He makes two thousand five

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hundred twenty three toothpicks He gets twenty five dollars twenty

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three cents It's completely variable but Bob joins the Toothpick

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makers local one forty two Their contract calls for an

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hourly wage twenty five dollars an hour Plus Bob is

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guaranteed forty hours a week Well now his wages aren't

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fixed at a grand A week there It doesn't matter

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how many toothpicks he makes in an hour Bob gets

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the same amount no matter what So if you can

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get more efficient with production if you can figure out

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how to make more per hour we'll then you Khun

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Stretch the labor cost Mohr Just as with the rent

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costs while you're proportional per unit cost will go down

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the more you make in the same amount of time

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on two semi variable elements of both fixed and variable

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cost Think about the pay for a sales person with

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a fixed salary of fifty grand a year to your

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sales associate You also give them a bonus of two

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dollars per ten boxes sold So each additional ten box

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units sold carries a two dollars variable cost to you

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related to commission But the salary is a fixed cost

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It gets relatively less expensive per unit with each additional

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sail Right You're going to pay fifty grand no matter

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what if the sales person sells ten boxes in a

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year Well the sales cost for that unit is fifty

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thousand two dollars The full salary plus the two dollar

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commission yet really expensive Yeah You just pay the salesperson

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five thousand dollars in twenty cents for each box of

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toothpicks they sold Yeah that was a bad deal If

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they sell ten thousand boxes will Now the overall cost

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is fifty two thousand for the year fifty grand in

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salary and two grand for the total commission for those

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thousand units Your paying Mohr on an absolute basis but

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the per box amount is much better now You pay

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just five twenty per box Okay so let's look at

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the big winnings Compensation for one hundred thousand boxes sold

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in a year Total cost goes up to seventy thousand

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again Maurin Absolute basis Fifty thousand salary twenty thousand Commission

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But now the per box costs just seventy cents Lastly

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there's the step category Instead of a per unit commission

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you offer your salespeople a bonus when they hit a

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certain level If they sell a hundred thousand units they

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get a twenty thousand dollar bonus So sales one through

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ninety nine thousand nine hundred ninety nine while the sales

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person earns fifty grand for the year on sale number

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one hundred thousand They earned seventy thousand for the year

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fifty grand in salary And you know the twenty grand

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bonus that hundred thousand sail becomes very expensive for you

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may be worth it to incentivize your sales force though

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so you gotta think about that stuff But because of

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the structure of strategy surrounding step costs are often different

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than the other three categories Right Did you get that

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big step function when they hit their next level of

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bonus For each of the other categories it's better to

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make output as high as possible Or in the case

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of variable costs it's at least neutral Assume you sell

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everything you make and that making tons of stuff doesn't

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force prices down Well then given your ability to sell

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everything and maintain pricing levels It's more profitable to make

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a cz much as possible with fixed and semi variable

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costs for each of those categories the per unit cost

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goes down with each additional toothpick you make The per

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unit cost of variable expenses states the same but it

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doesn't cost any more at least on a relative basis

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to make more So why not make more especially as

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you're fixed and semi variable cost get relatively cheaper Is

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output increases right Well step costs work differently as you've

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seen there Khun B scenarios where it's more profitable to

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not go to that next step and hopefully not have

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to pay all those bonuses You Grinch In the case

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of the sales bonus that hundred thousand unit comes with

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a twenty thousand dollars sales price tag meaning that big

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bump in commission to your sales force Well it might

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be best just to make ninety nine thousand nine hundred

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and nine boxes and call it a day But then

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when the clock resets on the bonus well then you

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start again at one sale Staff will not be happy

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but well that one time you could save twenty grand

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bonus and good luck with that That's not how the

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real world works Is that bonus money worth a hostile

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work environment create Yet Not for us to say You'll 00:09:30.462 --> [endTime] have Tio you know pick your own battles