# Step-wise answer to Marginal Cost

The problem states to find the lerner index for a company that sells sticks at $150 and it cost $45 to produce the stick.

The lerner index is d= 1- (MC/P)

I know I have to find the marginal cost to plug into the equation but I'm not sure how to find the marginal cost.

#### Solution Summary

Marginal Cost is solved.