68.81% is the change from 497 to 839
Calculation steps:
[( 839 - 497 ) ÷ 497] x 100 = 68.81%
Formula
Percentage change = [(839 - 497) / 497] x 100
Subtract the new number by the original number
839 - 497 = 342
342 ÷ 497 = 0.6881287726358148
0.6881287726358148 x 100 = 68.81%