Right to live is a nonprofit organization and that the expected additional operating cash inflows are $130,000 in years 1 through 5 and , the net initial investment is $392,500 (new machine, $390,000 plus additional working capital, $9,000 minus terminal disposal value of old machine, $6,500). A five year useful life, no terminal disposal value, and an 8% Required Rate of Return.

Required: Calculate the following:

1. Net present value.
2. Internal rate of return.
3. Payback Period.
4. Accounting rate of return

I need this to be solved these 4 required (like Simple rate of return or Accounting rate of return = annual incremental net operating income / initial investment?)

not by math NPV = F / [ (1 + r)^n ] << this is not acceptable