1. Account analysis for Inventory, (units, $ per unit and total cost)
2. Analysis of ending Inventory and Cost of goods sold
3. Journal entries for purchases and sales (the periodic adjustment)
4. General ledger account for inventory

Tom Pryor is conducting an audit of the computerized inventory system used by Zix Corporation. Tom has inserted hypothetical data into the computer program that tracks inventory on a perpetual basis. Below are the hypothetical data inserted by Tom:

Transaction			Units	Cost per unit
Beginning inventory			10	$10
Purchase, day 1			5	$11
Sale, day 2			6
Purchase, day 3			8	$12
Sale, day 4			9

The computer program returned the following ending inventory values: FIFO perpetual, $96 LIFO perpetual, $80 Moving average, $88

Which of the three values appears to be incorrect, and what "error" might be causing this condition?