71.03% is the change from 290 to 496
Calculation steps:
[( 496 - 290 ) ÷ 290] x 100 = 71.03%
Formula
Percentage change = [(496 - 290) / 290] x 100
Subtract the new number by the original number
496 - 290 = 206
206 ÷ 290 = 0.7103448275862069
0.7103448275862069 x 100 = 71.03%