-90.45% is the change from 911 to 87
Calculation steps:
[( 87 - 911 ) ÷ 911] x 100 = -90.45%
Formula
Percentage change = [(87 - 911) / 911] x 100
Subtract the new number by the original number
87 - 911 = -824
-824 ÷ 911 = -0.9045005488474204
-0.9045005488474204 x 100 = -90.45%