please provide what formula to type into excel

1. Calculate the amount of money you will need the first year of retirement: 2. Calculation the amount you will need the day you retire if you want the amount you calculated in part 1 paid out annually from the day you retire until the last date you want to receive retirement income and you want to leave nothing to your heirs. Assume the rate of return you will receive during this period is 2% less than the investment rate you chose above (people generally invest a little bit more conservatively during retirement). 1. Calculate the amount of money you will need the first year of retirement: 2. Calculation the amount you will need the day you retire if you want the amount you calculated in part 1 paid out annually from the day you retire until the last date you want to receive retirement income and you want to leave nothing to your heirs. Assume the rate of return you will receive during this period is 2% less than the investment rate you chose above (people generally invest a little bit more conservatively during retirement)