-77.5% is the change from 920 to 207
Calculation steps:
[( 207 - 920 ) ÷ 920] x 100 = -77.5%
Formula
Percentage change = [(207 - 920) / 920] x 100
Subtract the new number by the original number
207 - 920 = -713
-713 ÷ 920 = -0.775
-0.775 x 100 = -77.5%