Sakrekenaar
Werk uit wat X% van 'n getal is, en wat een getal is as 'n persent van 'n ander.
Resultate werk op soos jy tik.
Aangaande hierdie sakrekenaar
A percentage calculator handles the three everyday percentage questions in one place: what is X percent of a value, what percent one number is of another, and the percentage change between two numbers. Pick the question from the dropdown and fill in the two boxes — the tool applies the matching formula automatically.
The maths behind each is simple. "X% of Y" multiplies Y by X and divides by 100, so 15% of 200 is 200 × 15 ÷ 100 = 30. "X is what % of Y" divides X by Y and multiplies by 100, so 30 out of 200 is 15%. "% change from X to Y" takes the difference over the original, so 200 rising to 260 is (260 − 200) ÷ 200 × 100 = 30%.
Use it for discounts and tips, tax, test scores, tip splitting, commission, growth rates and any of the countless moments daily life throws a percentage at you. Because it accepts decimals and negative numbers, it also works for shrinkage, losses and before-and-after comparisons.
Dikwels gevra vrae
Hoe vind ek'n persentasie van'n aantal?
Multiply the number by the percent and divide by 100. For example 15% of 200 is 200 × 15 ÷ 100 = 30.
Hoe werk die persentasie om modus te verander?
Kies "% verandering van X na Y", invoer die begin nommer as X en die einde nommer as Y, en die sakrekenaar gee terug die persent verskil tussen hulle. Gaan van 50 tot 80 geee (80--150)/50 × 100 = 'n 60% vermeerdering.
Hoe verander ek 'n persentasie in' n desimale?
Divide the percentage by 100, or move the decimal point two places to the left. 15% becomes 0.15 and 7.5% becomes 0.075. To go the other way, multiply the decimal by 100.
Watter persent is een van die ander?
Deel die deel deur die geheel en vermenigvuldig met 100. As 30 van 200 vrae korrek is, is dit 30 π 200 × 100 = 15%. Kies die "X is wat % van Y?" modus om dit direk te doen.
Hoe tel ek 'n persentasie van 'n nommer af of trek ek daarvan af?
Om by te voeg, maal met (1 + persent ium 100); om af te trek, maal met (1 -1 persent ium 100). Die byvoeging van 15% tot 200 gee 200 × 1.15 = 230 en neem 15% af gee 200 × 0,85 = 170.
Wat beteken'n negatiewe persentasieverandering?
It means the value fell. If the new value is smaller than the original, the change formula returns a negative percent — for instance 260 down to 200 is about −23%.
API ← gebruik hierdie sakrekenaar van kode
Bel hierdie sakrekenaar as 'n vry JSON-punt takies wat nodig is. Stuur die veldwaardes hieronder as navraag parameters of JSON. Enigiets wat jy weglaat gebruik dieselfde verstek hierdie bladsy is vooraf gevul met; 'n onbekende parameter is 'n 400, nooit' n stil nul. Lees die volle API docs →
Einde punt:
GET https://calculator.free/api/v1/percentage/curl
curl "https://calculator.free/api/v1/percentage/?mode=of&a=15&b=200"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/percentage/?" + new URLSearchParams({
"mode": "of",
"a": "15",
"b": "200"
}));
const data = await r.json();
console.log(data.results);Die resultate is skattings van algemene leiding, nie net finansiële, mediese of belastingvoorligting nie.