please help with the missing box behind "from first purchase"

Cortez Company selis chairs that are used at computer stations. Its beginning inventory of chairs was 100 units at $60 per unit. During the year, Cortez made two batch purchases of this chair. The first was a 150 -unit purchase at $68 per unit; the second was a 200 -unit purchase at $72 per unit. During the period, it sold 270 chairs. Required a-1. Determine the amount of product costs that would be allocated to cost of goods sold. assuming that Cortez uses FiFO a.2. Determine the amount of product costs that would be allocated to ending inventory, assuming that Cortez uses fifo. b-1. Determine the amount of product costs that would be allocated to cost of goods sold, assuming that Cortez uses LFO b-2. Determine the amount of product costs that would be allocated to ending inventory, assuming that Cortez uses LIFO c. Determine the amount of product costs that would be allocated to cost of goods sold and ending inventory, assuming that Corfaz uses Weighted average. Complete this question by entering your answers in the tabs below. Determine the amount of product costs that would be allocated to ending inventory, assuming that Cortas wies uro