Deryl wishes to save money to provide for his retirement. Beginning one month from now, he will begin depositing a fixed amount into a retirement savings account that will earn 12% compounded monthly. He will make 360 such deposits. Then, one year after making his final deposit, he will withdraw $100,000 annually for 25 years. The fund will continue to earn 12% compounded monthly. How much should the monthly deposits be for his retirement?

I'm having trouble figuring out how to find the amount to be accumulated, the EAR isn't a problem but the rest of the problems is.