Average rate of return-new product Oahu Ine. is considering an investment in new equipment that wal be used to manchacture a smartphone. The phone is expected to generate add tional annual sales of 4,400 units at $206 per unit. The equipment has a cost of $450,100, residual value of $33,900, and an 8 -yeae bfe, The equipment can only be used to manufacture the phone. The cost to manufacture the phone follows: Determine the average rate of retum on the equipment. If required, round to the nearest whole percent