19.59% is the change from 531 to 635
Calculation steps:
[( 635 - 531 ) ÷ 531] x 100 = 19.59%
Formula
Percentage change = [(635 - 531) / 531] x 100
Subtract the new number by the original number
635 - 531 = 104
104 ÷ 531 = 0.1958568738229755
0.1958568738229755 x 100 = 19.59%