Cost schedule of a firm 

Output	Total Fixed cost TFC(N)	Total Variable Cost TVC (N)	Total Cost  TC (N)	Average Variable AVC(N)	Average Total ATC (N)	Marginal Cost MC(N)
0	100	0	100	0	100	-
1	100	40	140	-	-	-
2	100	64	164	-	-	-
3	100	80	180	-	-	-
4	100	88	188	-	-	-
5	100	96	196	-	-	-

From the cost schedule in this table calculate the Average Variable Cost (AVC), Average Total Cost (ATC) and Marginal Cost (MC) of the firm. Show your working clearly.