I want to receive a future monthly income of $ per month (in today's dollars)
for years beginning years from now.

My savings and accumulated funds will earn % interest per year.

My interest earnings will be taxed at %.
(OK to leave this zero, but the results won't be as accurate)

To protect my purchasing power, let's assume % average inflation rate.
(OK to leave this zero, but inflation is seldom less than 3%)

How much will I need to save monthly to accomplish this?