An investor saves for retirement $700 every month over the next 30 years. The money is invested in a stock portfolio and is expected to earn an average 9% per year. When he retires, he believes he will live 24 years and he will invest his retirement fund in a conservative bond fund that will earn 4.0% per year. During the retirement years, the investor plans to withdraw his life saving in equal monthly withdrawals, exhausting the retirement fund at the end of 20 years. Calculate the investor 30 years accumulated retirement fund. Calculate the 24 years of monthly retirement withdrawals that will exhaust his retirement fund at the end.