When you look at the additional cost of an action you are lo

When you look at the additional cost of an action you are looking at the ________ cost

Solution

Marginal cost

Marginal cost of any action is the additional cost or change in total cost due to change in any action.

E.g. If you are producing 8units for $80 and 9units cost you $100 then marginal cost of 9th unit=TC9-TC8=100-80=20