I would like to use excel to show how a future loan payment (fixed APR/fixed payment/fixed # of payments) decreases in value over time based on present value theory. For example, if I'm interested in investing in a rental property and take a 30 year fixed mortgage, I would like to see what my mortgage payment is valued in the future but in today's currency. I will use simple inflation rates as the discount. In other words, if my monthly payment is $1,000 - what will $1,000 actually look like 10, 15 or 20 years from now (obviously the payment will be $1,000, but what is that actually worth in today's money).
