-19.93% is the change from 818 to 655
Calculation steps:
[( 655 - 818 ) ÷ 818] x 100 = -19.93%
Formula
Percentage change = [(655 - 818) / 818] x 100
Subtract the new number by the original number
655 - 818 = -163
-163 ÷ 818 = -0.19926650366748166
-0.19926650366748166 x 100 = -19.93%