A percentage point or percent point is the unit for the arithmetic difference of two percentages. For example, moving up from 20% to 42% is a 22-percentage point increase, but is a 110 percent increase in what is being measured. Let’s see this with an example:
Source Text: Trump’s job approval has risen from 44 percent on March 16 by 5 percentage points to 49 percent nine days later on March 25.
Incorrect Translation: Trump’ın görev onayı 16 Mart’ta yüzde 44 iken, dokuz gün içinde yüzde 5 artarak 25 Mart’ta yüzde 49’a yükseldi.
Correct Translation: Trump’ın görev onayı 16 Mart’ta yüzde 44 iken, dokuz gün içinde 5 puan artarak 25 Mart’ta yüzde 49’a yükseldi.
In fact, in terms of percentage, President Trumps’s ratings has risen by 11.3 percent.
So, watch out for seemingly nuanced difference between percentages and percentage points when translating into Turkish and English.