51.57% is the change from 510 to 773
Calculation steps:
[( 773 - 510 ) ÷ 510] x 100 = 51.57%
Formula
Percentage change = [(773 - 510) / 510] x 100
Subtract the new number by the original number
773 - 510 = 263
263 ÷ 510 = 0.515686274509804
0.515686274509804 x 100 = 51.57%