In: Finance
What is the present value of a $100-payment, 100-year annuity due if the interest rate is 14% per year? What is the future value of a $50-payment, 50-year annuity due if the interest rate is 9% per year?
a. | Present value of a $100-payment, 100-year annuity due | $ 814.28 | |||||||||||
Working: | |||||||||||||
a. | Present value of annuity due of 1 | = | ((1-(1+i)^-n)/i)*(1+i) | Where, | |||||||||
= | ((1-(1+0.14)^-100)/0.14)*(1+0.14) | i | 14% | ||||||||||
= | 8.14284054 | n | 100 | ||||||||||
b. | Present value of annuity | = | Annuity amount x Present value of annuity of 1 | ||||||||||
= | $ 100.00 | x | 8.142841 | ||||||||||
= | $ 814.28 | ||||||||||||
b. | Future value of a $50-payment, 50-year annuity due | $ 44,422.05 | |||||||||||
Working: | |||||||||||||
a. | Future value of anuity due of 1 | = | ((((1+i)^n)-1)/i)*(1+i) | Where, | |||||||||
= | ((((1+0.09)^50)-1)/0.09)*(1+0.09) | i | 9% | ||||||||||
= | 888.441076 | n | 50 | ||||||||||
b. | Future value of annuity | = | Annuity amount x Future value of annuity of 1 | ||||||||||
= | $ 50.00 | x | 888.4411 | ||||||||||
= | $ 44,422.05 | ||||||||||||