70 $70 Robbins Company uses the perpetual inventory system and the FIFO cost formula. Purchases /Sales Units Unit Cost Mar 1 Beginning inventory 100 $50 3 Purchase 60 $60 4 Sales $100 10 Purchase 200 16 Sales 80 $110 19 Sales 80 $110 25 Sales 50 $110 30 Purchase $75 Instructions: Using the inventory and sales data above, calculate the value assigned to cost of goods sold and ending inventory