please explain

Assume that only one product is being sold in each of the four following case situations Unit sold Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin per units Case 1 Case #2. Caso #3 9,200 20,500 294,400 $ 317,400 $ 147.200 d. 287.000 84,000 170,000 a $ (32,000) $ 80,000 b. is 10ls 9 pts