Final answer:
The simple rate of return on the machine is 4.3%, calculated by subtracting the annual depreciation from the annual savings and dividing by the initial investment cost.
Step-by-step explanation:
To determine the simple rate of return on the machine for Jark Corporation, we must first calculate the annual depreciated expense and annual savings. The machine has a cost of $63,000 and a useful life of ten years, meaning the annual depreciation is $6,300 ($63,000 / 10 years). With a payback period of seven years, the annual savings generated by the machine must equal $9,000 (the cost of $63,000 divided by the payback period of seven years). The simple rate of return is then calculated by dividing the annual savings minus the annual depreciation expense by the initial investment and then multiplying by 100 to get a percentage.
SRR (Simple Rate of Return) = [(Annual Savings - Annual Depreciation) / Initial Investment] x 100
SRR = [($9,000 - $6,300) / $63,000] x 100
SRR = 4.3%
Therefore, the closest simple rate of return is 4.3%.