The following relates to a proposed equipment purchase: Cost Salvage value Estimated useful life Annual net cash flows Depreciation method $144,000$4,0004years$46,100 4 years $46,100 Straight-line Assuming that net cash flows are received evenly throughout the year, the accounting rate of retum is (ignore income taxes): 15.0%. 62.3% 32.0%. 5.0\%. 7.7\%