Two percent back against ten percent off, and an annual fee in between. Finds the annual spend where the card starts winning, accounts for the cashback cap, and checks that against your real basket size. CASHBACK DISCOUNT BREAKEVEN
| Scenario | Card net | Discount saving | Winner | Difference |
|---|
Decimal to Roman and back, validated strictly: a numeral is only accepted when re-encoding its value reproduces the input exactly, with a count of the symbols used.
Principal, rate, years and a monthly deposit drawn as a real growth curve, with the year-by-year split of interest against principal.
The nominal rate the bank quotes against the rate the money actually earns, and exactly how much a setup fee takes back off it.
Work out the deposit per month that lands on your goal on a given date, then see the projection and whether it is actually reachable.
Rasterise an uploaded SVG at your chosen scale.
Flatten transparency onto a chosen background colour.
Convert any image to a Base64 data URI — copy or download.
Paste a data URI and preview or download the image.
