-88.62% is the change from 817 to 93
Calculation steps:
[( 93 - 817 ) ÷ 817] x 100 = -88.62%
Formula
Percentage change = [(93 - 817) / 817] x 100
Subtract the new number by the original number
93 - 817 = -724
-724 ÷ 817 = -0.8861689106487148
-0.8861689106487148 x 100 = -88.62%