Jammer Company uses a weighted average perpetual inventory system and reports the following: Units Sold at Retail Date August 2 August 18 August 29 August 31 Activities Purchase Purchase Sales Purchase Units Acquired at Cost 10 units @ $20 = $200 15 units @ $23 = $345 20 units sold 14 units @ $24 = $336 What is the per unit value of ending inventory on August 31? Answers should be rounded to the nearest cent. Multiple Choice O $20.00 O $21.80 O O O $24.00 O O $23.42