-23.86% is the change from 834 to 635
Calculation steps:
[( 635 - 834 ) ÷ 834] x 100 = -23.86%
Formula
Percentage change = [(635 - 834) / 834] x 100
Subtract the new number by the original number
635 - 834 = -199
-199 ÷ 834 = -0.23860911270983212
-0.23860911270983212 x 100 = -23.86%