-21.56% is the change from 835 to 655
Calculation steps:
[( 655 - 835 ) ÷ 835] x 100 = -21.56%
Formula
Percentage change = [(655 - 835) / 835] x 100
Subtract the new number by the original number
655 - 835 = -180
-180 ÷ 835 = -0.2155688622754491
-0.2155688622754491 x 100 = -21.56%