(Ignore income taxes in this problem.) Duker Corporation is investigating the purchase of equipment that would increase sales revenues by $130,000 per year and cash operating expenses by $39.000 per year. The equipment would cost $328,000 and have an 8-year life with no salvage value. The company uses straight-line depreciation on all equipment. The simple rate of return on the investment is closest to: 15.2%. 12.5%. 27.7%. 39.6%