Saved Check my work mode: This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to q Exercise 16-14A (Algo) Determining the unadjusted rate of return LO 16-4 Zachary Painting Company is considering whether to purchase a new spray paint machine that costs $5,600. The machine is expected to save labor, increasing net income by $840 per year. The effective life of the machine is 15 years according to the manufacturer's estimate. Required a. Determine the unadjusted rate of return based on the average cost of the investment. (Enter your answer as a whole percentage (e.g. 0.55 should be entered as 55).) Answer is complete but not entirely correct. Unadjusted rate of return 1276