-24.07% is the change from 835 to 634
Calculation steps:
[( 634 - 835 ) ÷ 835] x 100 = -24.07%
Formula
Percentage change = [(634 - 835) / 835] x 100
Subtract the new number by the original number
634 - 835 = -201
-201 ÷ 835 = -0.2407185628742515
-0.2407185628742515 x 100 = -24.07%