62.94% is the change from 510 to 831
Calculation steps:
[( 831 - 510 ) ÷ 510] x 100 = 62.94%
Formula
Percentage change = [(831 - 510) / 510] x 100
Subtract the new number by the original number
831 - 510 = 321
321 ÷ 510 = 0.6294117647058823
0.6294117647058823 x 100 = 62.94%