77.25% is the change from 510 to 904
Calculation steps:
[( 904 - 510 ) ÷ 510] x 100 = 77.25%
Formula
Percentage change = [(904 - 510) / 510] x 100
Subtract the new number by the original number
904 - 510 = 394
394 ÷ 510 = 0.7725490196078432
0.7725490196078432 x 100 = 77.25%