ABC Marketing sells one product, with information for May as follows: May 1 Inventory 4 Sale 11 Purchase 13 Sale 20 Purchase 25 Purchase Return 27 Sale 29 Sale Return 125 units at $17.10 each 93 units at $18.10 each 151 units at $16.90 each 124 units at $18.90 each 170 units at $17.30 each 70 units at $17.30 each 97 units at $19.80 each 10 units at $19.80 each ABC Marketing uses the FIFO cost formula. All purchases and sales are on account. (1) Prepare all journal entries in May assuming ABC Marketing is using a perpetual inventory system, including the end-of-month adjustment entry to record cost of goods sold if necessary. (2) Prepare all journal entries in May assuming ABC Marketing is using a periodic inventory system including the end-of-month adjustment entry to record cost of goods sold if necessary.