Compare fairly
Two X% of Y quotes can sit a tenth of a point apart on paper and thousands of dollars apart in life when fees and timelines differ.
Compare only after you line up the same month-or-year convention, the same balance the rate uses, and the same cash you hand over at signing.
What hides in the footnotes
Headline rates are cheap to advertise. Rewrite each offer as dollars in and dollars out for the same window before you rank them.
When you stall, reread Percentage of a Number, then plug your real numbers into Related lesson instead of round examples from a blog.
Check your numbers now
One sentence per offer
Offer A can show the lower note rate and still lose once you pay points today. Offer B looks worse until APR pulls financed costs into the same frame. Change how long you keep the loan and the winner may swap.
Checklist
| First glance | After you align everything |
|---|---|
| Lower note rate | Lower APR when fees you actually pay are included |
| Smaller monthly payment | Lower total interest if you keep the loan long enough |
| Shorter, simpler form | Schedules you can reproduce line by line |
Same period, same balance, same cash up front Pick a timeline, then pick the offer
Same years, both offers
Core lesson
Go deeper: Percentage of a Number — if one number still does not feel right, enter it in the calculators above and change one input at a time to see what drives the result.
Use the calculator
FAQ
- Where is the main lesson?
Percentage of a Number pulls the topic together in one place, with links to related lessons.
- Which calculator should I open first?
Use the first tool in the list for most questions. If you are reconciling payment rows on a schedule, pick amortization when it appears in the list.