Hondai (Ltd) that operate in the automobile inductry is considering replacing a machine with a new one that requires a R4 200 000 investment. the opearting cash inflows over the next 9years will be R740 000 per annum and the cash inflow for the 10th year will be R220 000. Thereafter the machine will be sold for R400 000. The company uses staright-line depreciation. The cost of capital for projects os similar riskis 11%. Note: average profit id R308 000. Ignore taxation. calculate the net present value (NPV) and briefly comment on the viability of the proposed investment. justify why the NPV method is the preffered choice for investment appraisals.