find cost of a) cost of goods sold b) cost of ending inventory

use unrounded number for average cost. Round ans to 2 decimal places

Ayayai Furniture Ltd. uses a perpetual inventory system and has a beginning inventory, as at June 1, of 510 bookcases at a cost of $130 each. During June, the company had the following purchases and sales of bookcases: Purchases Sales Date Units Unit cost Units Unit price June 6 1,240 $132 10 960 $191 14 1,790 133 16 1,680 196 26 1,020 134