How did the answer come out, please show the equation

Ihe concept of the present, walue of an annury can be uied to compute the amourt of each withdrowal begirning at age 65 . Grven that the worker intends to make 15 annal withdravals. so it nequired to calculabe the present value of these cash flows at age 65. Explasution: The present value of an annuty is a financial term that exprewses the current value of a series of future cash flows of received or paid at regular intervals ower a period of time. 5sep2/2 Calculation of present value as follows: The annual withdrawal is found to be \$24,304.96 Explanation: Indivichals and organizatiens mary revaluate the aftractiveness of investment possiblities, inan payments, and retirement plars by calculating the present value of an arnulty, allowing them to mabe more informed investrient choices and understand the true value of have cash flows thereafter through ten years from the prescnt, A worker aged 40 wishes to accumulate a fund for retirement by depositing $30 (a) the beginning of each year for 25 years. Starting at age 65 the worker plans to 15 annual withdrawals at the beginning of each year. Assuming that all paymenty certain to be made, find the amount of each withdrawal starting at age 65 to nearest dollar, if the effective rate of interest is 8% during the first 25 years but 7% thereafter