M12-19. Payback Period and Accounting Rate of Return: Equal Annual Operating Cash Flows with Disinvestment Roopali is considering an investment proposal with the following cash flows: Initial investmentdepreciable assets. ....... Initial investmentworking capital. ....... Net cash inflows from operations (per year for 7 years). ..... Disinvestmentdepreciable assets. .. Disinvestmentworking capital. ..... $45,000 5,000 10,000 3,000 2,000 Required a. Determine the payback period b. Determine the accounting rate of return on initial investment c. Determine the accounting rate of return on average investment