please explain how you did the answer and include all formulas. thank you!

The 2020 balance sheet of Osaka's Tennis Shop, Incorporated, showed long-term debt of $2.25 million, and the 2021 balance sheet showed long-term debt of $2.66 million. The 2021 income statement showed an interest expense of $305,000. During 2021, Osaka's Tennis Shop, Incorporated, realized the following: Cash flow to creditors Cash flow to stockholders -$ 105,000 $209,000 Suppose you also know that the firm's net capital spending for 2021 was $1.5 million and that the firm reduced its net working capital investment by $55,000. What was the firm's 2021 operating cash flow, or OCF? (Enter your answer in dollars, not millions of dollars, e.g., 1,234,567.) Operating cash flow The Top Corporation has ending inventory of $426.287, and cost of goods sold for the year just ended was $4,738,216. a. What is the inventory turnover? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the days' sales in inventory? (Use 365 days a year. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. How long on average did a unit of inventory sit on the shelf before it was sold? (Use 365 days a year. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) a. Inventory turnover times days b. Days' sales in inventory c. Inventory days on shelf days