-11.53% is the change from 911 to 806
Calculation steps:
[( 806 - 911 ) ÷ 911] x 100 = -11.53%
Formula
Percentage change = [(806 - 911) / 911] x 100
Subtract the new number by the original number
806 - 911 = -105
-105 ÷ 911 = -0.11525795828759605
-0.11525795828759605 x 100 = -11.53%