-16.2% is the change from 920 to 771
Calculation steps:
[( 771 - 920 ) ÷ 920] x 100 = -16.2%
Formula
Percentage change = [(771 - 920) / 920] x 100
Subtract the new number by the original number
771 - 920 = -149
-149 ÷ 920 = -0.16195652173913044
-0.16195652173913044 x 100 = -16.2%