-10.32% is the change from 911 to 817
Calculation steps:
[( 817 - 911 ) ÷ 911] x 100 = -10.32%
Formula
Percentage change = [(817 - 911) / 911] x 100
Subtract the new number by the original number
817 - 911 = -94
-94 ÷ 911 = -0.10318331503841932
-0.10318331503841932 x 100 = -10.32%