4 (15%) D Co. is planning to buy a new rnachine costing P2,000,000 with a useful life of five years. Its residual value is expected to be 20% of its carrying value at the end of each year. Other data were made available: Expected annual sales revenue P4,000,000; Annual out of pocket costs: P3,100,000, Income tax rate 30%; Depreciation method, straight- line. Determine the following (a) Payback period (b) Payback reciprocal (c) Accounting rate of return on original investment