31.29% is the change from 636 to 835
Calculation steps:
[( 835 - 636 ) ÷ 636] x 100 = 31.29%
Formula
Percentage change = [(835 - 636) / 636] x 100
Subtract the new number by the original number
835 - 636 = 199
199 ÷ 636 = 0.3128930817610063
0.3128930817610063 x 100 = 31.29%