-89.22% is the change from 863 to 93
Calculation steps:
[( 93 - 863 ) ÷ 863] x 100 = -89.22%
Formula
Percentage change = [(93 - 863) / 863] x 100
Subtract the new number by the original number
93 - 863 = -770
-770 ÷ 863 = -0.8922363847045192
-0.8922363847045192 x 100 = -89.22%