19 lo oco.er banim Shitatie to 6. Calculating NPV / Payback / PI Ratio Year 0 1 2 3 Cash flow () -30,000 15,000 17,000 14,000 a) For the cash flows above, suppose the firm uses the NPV decision rule. At a required return of 12 per cent, should the firm accept this project? b) What if the required return was 40 per cent? c) What is the Cash Payback Period ? d) Calculate the Pl ratio's at 12% and 40%