Current Attempt in Progress Pina Furniture Ltd, uses a perpetual inventory system and has a beginning inventory, as at June 1. of 490 bookcases at a cost of $132 each. During June, the company had the following purchases and sales of bookcases: Purchases Sales Unit price Date Units Unit cost Units June 6 1.160 $134 10 950 $201 14 1.780 135 16 1,660 206 26 970 136 (a) Your answer is correct Determine the cost of goods sold and the cost of the ending inventory using the average cost formula. (Use unrounded numbers for average cost calculations. Round answers to 2 decimal places.es 5.52) Cost of goods sold 350088.92 Cost of the ending inventory $ 242251.08 (b) Calculate Pina Furniture's gross proft and gross profit margin for the month of June. (Round gross profit margin to 1 decimal place, eg. 15.1 and gross profit to the nearest whole dollar, es. 1525.) Gross profit Gross profit margin %