-82.99% is the change from 911 to 155
Calculation steps:
[( 155 - 911 ) ÷ 911] x 100 = -82.99%
Formula
Percentage change = [(155 - 911) / 911] x 100
Subtract the new number by the original number
155 - 911 = -756
-756 ÷ 911 = -0.8298572996706916
-0.8298572996706916 x 100 = -82.99%