1. The unemployment rate fell by two percentage points.
失业率下降了两个百分点。

2. Interest rates rose by 0.5 percentage points.
利率上升了0.5个百分点。

3. The gap between the two parties widened by three percentage points.
两党之间的差距扩大了三个百分点。

A: By how much did the inflation rate increase?
A：通货膨胀率增加了多少？

B: It increased by three percentage points.
B：它增加了三个百分点。

1) 用于统计学中表示百分数的变化量

2) 用以区分百分比本身的变化与数值的变化

3) 经济分析中常用的度量单位

1. 百分点

e.g.
The market share increased by one percentage point.
市场份额增加了1个百分点。

noun

1. A unit used to express the arithmetic difference between two percentages.