How do we find the impact for 2,3,4 and 5?

Flounder Hardware Limited reported the following amounts for its cost of goods sold and Inventory: Flounder made two errors in 2020. It recorded a $3,900 inventory purchase in transit at the end of 2020 that was shipped FOB destination and included this amount in ending inventory. Also during the year-end inventory count, staff forgot to count $5,000 of ending inventory that was on hand. No one discovered these errors in 2020. (a) Your answer is correct. Calculate the correct ending inventory and cost of goods sold amounts for each year. Describe the impact of the error on (1) cost of goods sold, (2) income before income tax, (3) assets, (4) liabilities, and (5) total shareholders' equity for each of the two years