You are planning to save for retirement over the next 25 years. To do this, you will invest $1,500 a month in a stock account and $1,400 a month in a bond account. The return of the stock account is expected to be 10 percent, and the bond account will pay 7 percent. When you retire, you will combine your money into an account with a 8 percent return. Assuming a 15-year withdrawal period, you can withdraw $ (0%) each month from your account.