What is the cumulative effect of the inventory error on total gross profit for the 2 years? (If answer is zero please enter 0, do not leave any field blank.) Total gross profit for the two years $ Sandra Company reported these income statement data for a 2-year period. 2022 2021 Sales $245,000 $205,800 Beginning inventory 39,200 29,400 Cost of goods purchased 197,960 169,540 Cost of goods available for sale 237,160 198,940 Ending inventory 49,000 39,200 Cost of goods sold 188,160 159,740 Gross profit $56,840 $46,060 Sandra uses a periodic inventory system. The inventories at January 1, 2021 and December 31, 2022, are correct. However, the ending inventory at December 31, 2021 is overstated by $3,920. Prepare correct income statement data for the 2 years. 2021 2022 Sales $ 205800 $ 245000 Operating Expenses Beginning Inventory 29400 35280 Cost of Goods Purchased 169540 197960 Cost of Goods Available for Sale 198940 233240 Ending Inventory 35280 i 49000 i Cost of Goods Sold 163660 i 184240 i Gross Profit 42140 60760