Lemma
EasyDecimals & percentages
#95 · Arithmetic · Decimals & percentages

Up twenty, down twenty

A price rises by and then falls by . By what percent is the final price lower than the original? (Enter the number, e.g. for .)

~3 minAnswer checked instantlyPercent changeMultipliers
Stuck? A gentle nudge
Something off?
Workspace
Your answer
Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.