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# Marginal cost, average variable cost, and average total cost

In this video we calculate the costs of producing a good, including fixed costs, variable costs, marginal cost, average variable cost, average fixed cost, and average total cost.

## Want to join the conversation?

• From , why are MPL, MC, AVC, AFC, and ATC not calculated from the first labour unit? In previous videos, they are being calculated from the first labour unit.
(1 vote)
• The first Marginal cost (11000-7000) / (25-10), when done on a calculator shows \$150 instead of \$257, i don't know what i'm doing wrong, can someone please help me?
• oh! my bad, i was actually dividing them as one equation but when done separately i.e.
- 11000-7000= 4000
- 25-10= 15
- 4000/15
- =150
for a reason i don't know, we get the same answer as Sal.
• I don't understand how you got the numbers for Total Output. Can you help me?
(1 vote)
• Total Output is given in the problem, so you don't have to figure it out. Same with the other four rows at the start of the video - they are all information that's already given to you.