What would the formula in EXCEL be?

Challenge Question The Kent Company is considering buying an additional new processor for its production operation. The price of the processor is $850,000 and it has a life expectancy of 5 years. The company has estimated that it will generate a net cash inflow each year of $210,000. The machine has no salvage value. If Kent company uses a cost of capital of 8% for making acquisition decisions (i.e., the return on the investment needs to equal or exceed 8%) should Kent buy the processor