how do I calculate this step by step?

Knowledge Check 01 The sales revenue and correct inventory Information for Talisman Corporation is provided below. Sales revenue Beginning inventory Purchases Ending Inventory Year 1 $75,000 10,000 50,000 12,000 Year 2 $80,000 12,000 60.000 9,000 By mistake the accountant at Talisman recorded $15.000 as ending inventory for Year 1. Which of the following is true of the total amount reported for cost of goods sold over the two-year period from Year 1 to Year 2 because of the error? Muluple Choice Inces by $3.000 Decreases by $3.000 Unaffected at 1000 Unaffected at 563.000