Live forever Insurance Company is selling a perpetual annuity contract that pays $$2,800$ montbly. The contract currently sells tor

$$328,000.$

a$.$ What is the monthly return on this investment vehicle?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$\mathrm{.}3215.$

b$.$ What is the APR?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.32\mathrm{.}15.$

c$.$ What is the effective annual return?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.3216.$