-11.85% is the change from 920 to 811
Calculation steps:
[( 811 - 920 ) ÷ 920] x 100 = -11.85%
Formula
Percentage change = [(811 - 920) / 920] x 100
Subtract the new number by the original number
811 - 920 = -109
-109 ÷ 920 = -0.11847826086956521
-0.11847826086956521 x 100 = -11.85%