Procentkalkylator
Three common percentage jobs on one page: part of a whole, reverse percentage, and change between two numbers.
Den här sidan översätter det engelska originalet. Beräkningsmotorn är densamma.
Snabbsvar
It applies the three school formulas without adding tax, compounding or currency conversion.
Exempel: 25% of 80 = 20. 20 is 25% of 80. 80 → 100 is a 25% increase.
Beräkningarna följer formeln på den här sidan; avrundning och enheter kan ändra sista siffran. Behandla resultatet som en pedagogisk uppskattning.
* Uppskattning. Verkliga belopp kan variera beroende på antaganden.
Vad kalkylatorn gör
It applies the three school formulas without adding tax, compounding or currency conversion.
Vem den är till för
Anyone checking a discount, a grade or a change between two values.
Så fungerar beräkningen
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
Antaganden
- Numbers are exact as entered.
- Change uses the first value as the base.
Begränsningar
- Does not handle successive discounts unless you chain the results yourself.
Så använder du verktyget
- 1Pick the mode you need.
- 2Enter the two numbers.
- 3Read the result and the short explanation.
Vanliga frågor
- 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.