Micro Tek Inc. is considering an investment in new equipment that will be used to manufacture a smartphone. The phone is expected to generate additional annual sales of 4,700 units at $234 per unit. The equipment has a cost of $393,400, residual value of $29,600, and an eight-year life. The equipment can only be used to manufacture the phone. The cost to manufacture the phone follows: Cost per unit: Direct labor $39.00 Direct materials 153.00 Factory overhead (including depreciation) 26.25 Total cost per unit $218.25 Determine the average rate of return on the equipment. If required, round to the nearest whole percent. %