-89.35% is the change from 911 to 97
Calculation steps:
[( 97 - 911 ) ÷ 911] x 100 = -89.35%
Formula
Percentage change = [(97 - 911) / 911] x 100
Subtract the new number by the original number
97 - 911 = -814
-814 ÷ 911 = -0.893523600439078
-0.893523600439078 x 100 = -89.35%