Four modes
Handles percent, ratio, change, and discount at once.
Everyday Calculator
百分比计算器 — 百分比、变化率、折扣价
一屏即时计算 X 的 Y%、X 是 Y 的百分之几、A→B 变化率，以及折扣价与节省额。
百分比计算器
把常用的四种百分比计算放在一起。
B 的 A% 是多少？
A 是 B 的百分之几？
从 A 到 B 的变化率
折后价格
What is the percentage calculator?
Four common percentage calculations on one screen: ① Y% of X, ② X is what percent of Y, ③ percent change from A to B, ④ discounted price and savings.
How to use
- 1 Enter the values for the calculation you need.
- 2 Results compute instantly as you type.
- 3 Percent change also shows the increase/decrease direction.
Highlights
Discount + savings
Shows the final price and how much you save.
Instant
Results update as you type.
常见问题
How do I find Y% of X?+
X × Y ÷ 100. For example, 15% of 200 = 30.
How is percent change computed?+
(new − old) ÷ old × 100. For example, 100→125 = +25%.
How is the discount price found?+
Price × (1 − discount%/100). For example, 50,000 −20% = 40,000.
Related tools
General arithmetic, for reference only.