-89.81% is the change from 893 to 91
Calculation steps:
[( 91 - 893 ) ÷ 893] x 100 = -89.81%
Formula
Percentage change = [(91 - 893) / 893] x 100
Subtract the new number by the original number
91 - 893 = -802
-802 ÷ 893 = -0.8980963045912654
-0.8980963045912654 x 100 = -89.81%