Drop down options are amount invested, average amount invested, Average annual operating income, and Present value of net cash inflows

I need the most help on ARR and NPV, but all help is apprecaited

Calculate the ARR (accounting rate of return) for both plans. (Round your answers to the nearest tenth percent, X.X%.) = ARR Plan A Plan B 4. Division D is considering two possible expansion plans. Plan A would expand a current product line at a cost of $8,500,000. Expected annual net cash inflows are $1,525,000, with zero residual value at the end of 10 years. Under Plan B, Division D would begin producing a new product at a cost of $8,150,000. This plan is expected to generate net cash inflows of $1,090,000 per year for 10 years, the estimated useful life of the product line. Estimated residual value for Plan B is $1,200,000. Division D uses straight-line depreciation and requires an annual return of 10%. a. Compute the payback, the ARR, the NPV, and the profitability index for both plans