68.82% is the change from 510 to 861
Calculation steps:
[( 861 - 510 ) ÷ 510] x 100 = 68.82%
Formula
Percentage change = [(861 - 510) / 510] x 100
Subtract the new number by the original number
861 - 510 = 351
351 ÷ 510 = 0.6882352941176471
0.6882352941176471 x 100 = 68.82%