please solve this one.

Problem 6-7A Gross profit comparisons and cost flow assumptions-perpetual LO2, 3 Ontario Skateboard Company has the following inventory and purchases during the fiscal year ended December 31, 2020 Beginning Inventory 310 units @ $ 83/unit March 10 purchased 212 units @$ 85/unit March 20 sold 360 units @ $ 173/unit May 13 purchased 274 units @ $ 80/unit August 5 purchased 265 units @ $ 69/unit September 10 sold 567 units @ $ 173/unit Ontario Skateboard Company employs a perpetual inventory system. Required: 1. Calculate the dollar value of ending inventory and cost of goods sold using: (Do not round intermediate calculations. Round the final answers to 2 decimal places. Round weighted average all unit costs to two decimal places.) Ending Inventory |Cost of Goods Sold a FIFO b. Moving weighted average