退休金在期末支付如何计算 Assume you have set up a retirement

退休金在期末支付如何计算 Assume you have set up a retirement fund. Please choose your own parameters (First payment = 30,000, r - discount rate = 10%, g - growth rate = 5%, n - no. of years = 30) for a constant growing annuity so that you can lead a good life in retirement. Assume the annuity is your only source of income after retirement. Based on the parameters you have chosen calculate how much you would have saved in the retirement fund at the time of retirement to achieve your goal.