30.39% is the change from 635 to 828
Calculation steps:
[( 828 - 635 ) ÷ 635] x 100 = 30.39%
Formula
Percentage change = [(828 - 635) / 635] x 100
Subtract the new number by the original number
828 - 635 = 193
193 ÷ 635 = 0.30393700787401573
0.30393700787401573 x 100 = 30.39%