7.87% is the change from 635 to 685
Calculation steps:
[( 685 - 635 ) ÷ 635] x 100 = 7.87%
Formula
Percentage change = [(685 - 635) / 635] x 100
Subtract the new number by the original number
685 - 635 = 50
50 ÷ 635 = 0.07874015748031496
0.07874015748031496 x 100 = 7.87%