Grants Corporation prepared the following two income statements (simplified for illustrative purposes): First Quarter Second Quarter Sales revenue Cost of goods sold Beginning inventory $ 11,800 $18,500 $ 3,600 $ 3,200 Purchases 3,400 Goods available for sale 7,000 12,600 15,800 Ending inventory 3,200 9,900 Cost of goods sold 3,800 5,900 Gross profit Expenses Pretax income 8,000 4,400 $ 3,600 12,600 5,600 $ 7,000 During the third quarter, it was discovered that the ending inventory for the first quarter should have been $3,720. Required: 1. What effect did this error have on the combined pretax income of the two quarters? 2. Which quarter's or quarters' (if any) EPS amounts were affected by this error? 3. Prepare corrected income statements for each quarter. 4. Prepare the schedule to reflect the comparative effects of the correct and incorrect amounts on the income statement.