54.18% is the change from 502 to 774
Calculation steps:
[( 774 - 502 ) ÷ 502] x 100 = 54.18%
Formula
Percentage change = [(774 - 502) / 502] x 100
Subtract the new number by the original number
774 - 502 = 272
272 ÷ 502 = 0.5418326693227091
0.5418326693227091 x 100 = 54.18%