Exercise 7-13 Perpetual and Periodic Date Units Cost/Unit Total June 1 June 3 June 15 June 22 June 30 Description Beg Invento Purchase Sale Sale Purchase 700 400 300 600 600 S6.20 6.40 $12 $12.50 $6.70 $4,340 $2,560 $3,600 $7,500 $4,020 When using the Periodic Inventory system, you must prepare the following Date Units Cost/Unit Total Description Beg Invento Purchase Purchase 700 400 600 1700 800 900 $4,340 $2,560 $4,020 $10,920 $6.20 6.40 S6.70 June 1 June 3 June 30 GAFS EI COGS Periodic LIFO: Ending Inventory: Cost of Goods Sold: Perpetual LIFO: Ending Inventory: Cost of Goods Sold