can someone help me do the marginal cost -showing the first 2 rows what numeres are use to come out with the marginal cost please.

You own a yogurt shop. 1) The inputs to the production of frozen yogurt are: 3 machines, refrigerators, frozen yogurt mix, cups, sprinkles, workers. What are the fixed inputs, and which are variable? 2) Complete the table: Wages per worker are $80, other variable input costs are $0.50 per cup, and Fixed Costs are $100