54.93% is the change from 497 to 770
Calculation steps:
[( 770 - 497 ) ÷ 497] x 100 = 54.93%
Formula
Percentage change = [(770 - 497) / 497] x 100
Subtract the new number by the original number
770 - 497 = 273
273 ÷ 497 = 0.5492957746478874
0.5492957746478874 x 100 = 54.93%