Oriental Corporation has gathered the following data on a proposed investment project: Investment in depreciable equipment Annual net cash flows Life of the equipment Salvage value Discount rate $630,000 $ 88,000 15 years 10% The company uses straight-line depreciation on all equipment. Assume cash flows occur uniformly throughout a year except for the initial investment. The payback period for the investment would be: Multiple Choice 0.1 years 10 years 5.2 years 7.2 years