69.31% is the change from 290 to 491
Calculation steps:
[( 491 - 290 ) ÷ 290] x 100 = 69.31%
Formula
Percentage change = [(491 - 290) / 290] x 100
Subtract the new number by the original number
491 - 290 = 201
201 ÷ 290 = 0.6931034482758621
0.6931034482758621 x 100 = 69.31%