31.81% is the change from 635 to 837
Calculation steps:
[( 837 - 635 ) ÷ 635] x 100 = 31.81%
Formula
Percentage change = [(837 - 635) / 635] x 100
Subtract the new number by the original number
837 - 635 = 202
202 ÷ 635 = 0.31811023622047246
0.31811023622047246 x 100 = 31.81%