-86.78% is the change from 817 to 108
Calculation steps:
[( 108 - 817 ) ÷ 817] x 100 = -86.78%
Formula
Percentage change = [(108 - 817) / 817] x 100
Subtract the new number by the original number
108 - 817 = -709
-709 ÷ 817 = -0.8678090575275398
-0.8678090575275398 x 100 = -86.78%