63.73% is the change from 510 to 835
Calculation steps:
[( 835 - 510 ) ÷ 510] x 100 = 63.73%
Formula
Percentage change = [(835 - 510) / 510] x 100
Subtract the new number by the original number
835 - 510 = 325
325 ÷ 510 = 0.6372549019607843
0.6372549019607843 x 100 = 63.73%