perpetual inventory using weighted average

Perpetual Inventory Using Weighted Average Beginning inventory, purchases, and sales for Meta-B1 are as follows: 100 units at $400 70 units July 1 12 23 26 Inventory Sale Purchase Sale 120 units at $450 110 units a. Assuming a perpetual inventory system and using the weighted average method, determine the weighted average unit cost after the July 23 purchase. $ per unit b. Assuming a perpetual inventory system and using the weighted average method, determine the cost of the merchandise sold on July 26. c. Assuming a perpetual inventory system and using the weighted average method, determine the inventory on July 31