Calculate the net present value of a business deal that costs $$2,500$ today and five years pays a return at the end of the year for five years. At the end of the first year the return is $$1,500$ at the end of the next year the return is $$1,700,$ and the remaining rears the return is $$2200.$ If all things remain the same except the interest rate is $10\%$ rather than $13\%,$ does the NPV go up or down or it depends $?$