On April 19, 2018, Millipede Machinery sold a tractor to Thomas Hartwood, accepting a note promising payment of $260,000 in four years. The applicable effective interest rate is 7%. (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided.) What amount of sales revenue would Millipede recognize on April 19, 2018, for the Hartwood transaction? (Round your final answer to nearest whole dollar.)

I don't know how to calculate the PV, interest and years formula.