54.58% is the change from 502 to 776
Calculation steps:
[( 776 - 502 ) ÷ 502] x 100 = 54.58%
Formula
Percentage change = [(776 - 502) / 502] x 100
Subtract the new number by the original number
776 - 502 = 274
274 ÷ 502 = 0.545816733067729
0.545816733067729 x 100 = 54.58%