-9.77% is the change from 911 to 822
Calculation steps:
[( 822 - 911 ) ÷ 911] x 100 = -9.77%
Formula
Percentage change = [(822 - 911) / 911] x 100
Subtract the new number by the original number
822 - 911 = -89
-89 ÷ 911 = -0.09769484083424808
-0.09769484083424808 x 100 = -9.77%