4) Transactions for the month of July for Shelly's Bookstore were as follows: Purchases Salca July 1 (balance) 600 8 $7.30 1,200 @ $7.40 July 3 350 @$9.50 12 900 @9.75 22 700 $7.60 25 800 10.00 250 $7.75 30 Determine the ending inventory and Cost of Goods Sold values using the (1) Periodic and (2)Perpetual methods for: a. FIFO, b. LIFO. c. Moving-average method (round unit prices to four decimal places).