69.41% is the change from 510 to 864
Calculation steps:
[( 864 - 510 ) ÷ 510] x 100 = 69.41%
Formula
Percentage change = [(864 - 510) / 510] x 100
Subtract the new number by the original number
864 - 510 = 354
354 ÷ 510 = 0.6941176470588235
0.6941176470588235 x 100 = 69.41%