-8.91% is the change from 920 to 838
Calculation steps:
[( 838 - 920 ) ÷ 920] x 100 = -8.91%
Formula
Percentage change = [(838 - 920) / 920] x 100
Subtract the new number by the original number
838 - 920 = -82
-82 ÷ 920 = -0.0891304347826087
-0.0891304347826087 x 100 = -8.91%