Percentage Calculator

Percentage: share, change rate, discount

Percentage Calculator is a free online Calculators tool. Percentage: share, change rate, discount Related terms: 百分比 · percentage · % · 占比 · 增减. Use it on this page without signing in.

① 求某数的百分比

计算 X 的 Y% 等于多少（如 200 的 15% = 30）

的% =
0

② 求占比百分比

X 是 Y 的百分之几（如 30 是 200 的百分之几 = 15%）

占=
—

③ 增减百分比

从 X 变化到 Y，增减了百分之几（如 100 → 150 = 增加 50%）

→=
—

三个常用百分比计算模式，输入即时计算。增减百分比中红色表示增加、绿色表示减少。

Help

使用说明

  1. 选择计算类型：A 是 B 的百分之几 / A 的 P% 是多少 / 增减率
  2. 输入对应数值
  3. 自动计算结果，支持反向求值
  4. 适合打折、增长、占比等日常场景

常见问题

  • 占比：A 占 B 的百分比 = A ÷ B × 100%
  • 增减率：(新值 − 旧值) ÷ 旧值 × 100%，负数表示下降
  • 打折：打 8 折即原价 × 0.8，注意「几折」与「百分之几」的区别
  • 计算结果仅供参考

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FAQ about Percentage Calculator

What can Percentage Calculator do?

Percentage Calculator is a Calculators tool. Percentage: share, change rate, discount You can finish the job on this page.

Who should use Percentage Calculator?

Anyone handling 百分比 · percentage · % · 占比 · 增减 who does not want to install desktop software can use Percentage Calculator in the browser.

Is Percentage Calculator safe? Is my data uploaded?

This tool runs in your browser. We do not collect the content you enter into Percentage Calculator just because you used it.

What similar tools exist?

Related tools in the same Calculators group are listed at the bottom of this page.