Template · 2026-08-16 updated

Before and after

One pair of values, 80 → 100. The A → B card reads it three ways at once: difference, ratio, and percent change.

You can change the numbers right here, but changes made here are not saved. To keep what you build, use “Open in CalcAnyway” and edit there.

Try moving it

Change B from 100 to 60 — the difference goes negative and the increase becomes a decrease.
Make A and B equal — difference 0, ratio 1, change 0%. The three readings line up.