pls show me step by step how to solve it

- The following information, taken from Frank \& Astel's, a trendy shop selling equipment to construction workers, describes the hard-hats inventory account. PP 10-2 - For each year calculate: - Inventory - COGS - Gross income - Net income for the 2 years as a whole - Assume 40% tax rate - Assume no other expenses for each year - Use FIFO and WAC