Percentage Calculator百分比计算器

Find percentages and proportions instantly.

计算"X 是 Y 的百分之几"与"X 占 Y 的百分之几"，快速做占比与增减分析。

What is Percentage Calculator?百分比计算器 是什么？

A percentage calculator answers the three questions people actually ask: what is X percent of Y, what percentage is X of Y, and what is the percentage change from X to Y. It handles all three modes in one place and shows the working, so you can check the maths instead of trusting it.

百分比计算器一次回答三类常见问题：某数的百分之几是多少、一个数占另一个数的百分之几、从一个数到另一个数的百分比变化。三种模式合一，并展示计算过程，让你能核对而不是盲信。

How to use percentage calculator如何使用 百分比计算器

1. Choose the mode: percent of a number, what percent one number is of another, or percentage change.
2. Enter the two values.
3. Read the result together with the formula used.
4. Copy the answer.

1. 选择模式：求百分比、求占比、求百分比变化。
2. 输入两个数值。
3. 读取结果及所用公式。
4. 复制答案。

Common uses常见用途

• Work out a discount, a tax amount or a commission
• Calculate a grade, a completion rate or a growth figure
• Find the percentage change between two numbers
• Check a percentage quoted in a report or an invoice

• 算折扣、税额、佣金
• 算成绩、完成率、增长率
• 求两个数之间的百分比变化
• 核对报告或发票里的百分比

FAQ常见问题