54.53% is the change from 497 to 768
Calculation steps:
[( 768 - 497 ) ÷ 497] x 100 = 54.53%
Formula
Percentage change = [(768 - 497) / 497] x 100
Subtract the new number by the original number
768 - 497 = 271
271 ÷ 497 = 0.545271629778672
0.545271629778672 x 100 = 54.53%