Procentberegner
Three common percentage jobs on one page: part of a whole, reverse percentage, and change between two numbers.
Denne side oversætter den engelske original. Beregningsmotoren er den samme.
Kort svar
It applies the three school formulas without adding tax, compounding or currency conversion.
Eksempel: 25% of 80 = 20. 20 is 25% of 80. 80 → 100 is a 25% increase.
Beregningerne følger formlen på denne side; afrunding og enheder kan ændre sidste ciffer. Behandl resultatet som et pædagogisk skøn.
* Skøn. Faktiske beløb kan variere efter forudsætningerne.
Hvad denne beregner gør
It applies the three school formulas without adding tax, compounding or currency conversion.
Hvem det er til
Anyone checking a discount, a grade or a change between two values.
Sådan virker beregningen
X% of Y = X/100 × Y. ‘X is what % of Y’ = X/Y × 100. Change = (new − old) / old × 100.
Formel
part = p/100 × whole; percent = part/whole × 100; change = (new − old)/old × 100
Forudsætninger
- Numbers are exact as entered.
- Change uses the first value as the base.
Begrænsninger
- Does not handle successive discounts unless you chain the results yourself.
Sådan bruger du værktøjet
- 1Pick the mode you need.
- 2Enter the two numbers.
- 3Read the result and the short explanation.
Ofte stillede spørgsmål
- Is percentage change the same as percentage points?
- No. A rate moving from 10% to 12% is 2 percentage points and a 20% relative change.