P6-71B. (Learning Objectives 2, 3: Computing inventory by three methods perpetual system) SWAT Team Surplus began July with 69 tents that cost 24 each. During the month, SWAT Team Surplus made the following purchases at cost: SWAT Team Surplus sold 316 tents, and at July 31 the ending inventory consists of 52 tents. The sale price of each tent was 55. Requirements