34.65% is the change from 635 to 855
Calculation steps:
[( 855 - 635 ) ÷ 635] x 100 = 34.65%
Formula
Percentage change = [(855 - 635) / 635] x 100
Subtract the new number by the original number
855 - 635 = 220
220 ÷ 635 = 0.3464566929133858
0.3464566929133858 x 100 = 34.65%