a.)Zimmerman Corp. had 1,500 units of part M.O. on hand May 1, 2010, costing $21 each. Purchases of part M.O. during May were as follows. Units Unit Cost May 9 2,000 $22.00 17 3, 500 23.00 26 1,000 24.00 A physical count on May 31, 2010, shows 2,000 units of part M.O. on hand. Calculate ending inventory AND COGS under FIFO, LIFO, and moving average, but using the Perpetual method.