Tosco Company sells many products. Wash-Rite is one of its popular items. Below is an analysis of the inventory purchases and sales of Wash-Rite for the month of March. Tosco Company uses the periodic inventory system. Purchases Sales Units Unit Cost Units Selling Price/Unit 3/1 Beginning inventory 100 $40 3/3 Purchase 60 $50 3/4 Sales 70 3/10 Purchase 200 $55 3/16 Sales 3/19 Sales 3/25 Sales 50 28800 $80 80 $90 60 $90 $90 3/30 Purchase 40 40 $60 Instructions (a) Using the FIFO assumption, calculate the amount charged to cost of goods sold for March. (Show computations) (b) Using the weighted average method, calculate the amount assigned to the inventory on hand on March 31. (Show computations) (c) Using the LIFO assumption, calculate the amount assigned to the inventory on hand on March 31. (Show computations)