Because original is incorrect. For the first increase 0.5% to 1.5% is an increase of 200% while the increase in percentage points is 1. The reason it’s important is that it can skew the readability of the statistics to a degree where the numbers at best are confusing and at worst are misleading. In your case you accidentally understated the significance of the increase.
The increase is not 1 and 1.5 percent but 1 and 1.5 percentage points
tbh i don’t really see the point in mentioning this.
Because original is incorrect. For the first increase 0.5% to 1.5% is an increase of 200% while the increase in percentage points is 1. The reason it’s important is that it can skew the readability of the statistics to a degree where the numbers at best are confusing and at worst are misleading. In your case you accidentally understated the significance of the increase.