-88.5% is the change from 809 to 93
Calculation steps:
[( 93 - 809 ) ÷ 809] x 100 = -88.5%
Formula
Percentage change = [(93 - 809) / 809] x 100
Subtract the new number by the original number
93 - 809 = -716
-716 ÷ 809 = -0.8850432632880099
-0.8850432632880099 x 100 = -88.5%