如何计算Percent
learn.whatIsHeading
A percentage represents a ratio as parts per hundred. The % symbol evolved from "per cento" (Italian for "per hundred"). Percentages appear in discounts, tax rates, test scores, nutrition labels, and statistics.
分步指南
- 1Part / Whole × 100 = Percentage
- 2To find the part: Percentage × Whole / 100
- 3To find the whole: Part / (Percentage / 100)
例题解析
输入
15% of 200
结果
30
(15/100)×200=30
输入
45 is ?% of 180
结果
25%
(45/180)×100=25%
输入
50 → 65, % change
结果
+30%
((65-50)/50)×100=30%