1. Trout company uses a perpetual system and made purchases and sales of a product as follows: Cost per unit $12.00 $13.00 $15.00 $16.00 Total Cost $900 $4940 $7500 $7200 Date Purchase Number of units Jan 1 beginning 75 March 14 purchase 380 July 30 purchase 500 October 4 purchase 450 Units available 1105 Cost of Goods The company makes sales in the following dates Date Sale Jan 10 sale March 15 sale Oct 15 sale Total $20540 Number of units 70 units 180 units 450 units 700 units Assign the cost of the inventory using the following a FIFO b. Weighted Average