The monthly pay 68165, every month at 7 %annual rate. 20 years ,How can they got 35491725.06????

I use Pv=c/r (1-1/[(1+r)^t just got 8842513.05.

EMI- Rent=98165- 30000= 68165. This amount can be invested in annuity every month at 7% 35,491,725.06 annual rate. 237679936.22 68165 20 mi red ya Total After calculating all 37679936.22. expenses for the 20 year period, we got the total expenses for rent as