55.13% is the change from 497 to 771
Calculation steps:
[( 771 - 497 ) ÷ 497] x 100 = 55.13%
Formula
Percentage change = [(771 - 497) / 497] x 100
Subtract the new number by the original number
771 - 497 = 274
274 ÷ 497 = 0.5513078470824949
0.5513078470824949 x 100 = 55.13%