Which statements correctly account for the direction of percentage change? Select all that apply.
A rise from 200 to 230 is 15%.✓Ճիշտ պատասխան
A rise from 200 to 230 is 30%.
A fall from 230 to 200 is about 13% when rounded to the nearest whole percent.✓Ճիշտ պատասխան
The two directions must have equal percentage changes.
Բացատրություն
A rise of 30 from 200 gives 30 / 200 x 100 = 15%. A fall of 30 from 230 gives 30 / 230 x 100 = 13.04%, which rounds to 13%; the two percentages differ because their old values differ.