View Policies u 33:40 TUCCI Current Attempt in Progress Waterway Inc. uses the perpetual inventory system and the weighted average cost formula to value inventories. On August 1, there were 4000 units valued at $14000 in the beginning inventory. On August 10, 6000 units were purchased for $5 per unit. On August 15, 7000 units were sold for $10 per unit. The amount charged to cost of goods on August 15 was O $29000. O $30800. O $35000 O $22750. Save for Later Attempts: 0 of 1 used Submit