84.31% is the change from 510 to 940
Calculation steps:
[( 940 - 510 ) ÷ 510] x 100 = 84.31%
Formula
Percentage change = [(940 - 510) / 510] x 100
Subtract the new number by the original number
940 - 510 = 430
430 ÷ 510 = 0.8431372549019608
0.8431372549019608 x 100 = 84.31%