Case Studies

One decision, one set of numbers, worked all the way through. Every figure on these pages is computed when the page loads, by the same engines behind our calculators — so you can open any scenario in the tool and keep going with your own numbers.

Saves $108,096 and 6 yr 2 mo$350,000 Mortgage at 6.5%: What $200 Extra a Month Actually DoesA worked example with real numbers: paying $200 extra on a $350,000 mortgage at 6.5%. See the payoff date move, the interest saved, and how the balance gap compounds year by year.Updated August 2, 2026