68.97% is the change from 290 to 490
Calculation steps:
[( 490 - 290 ) ÷ 290] x 100 = 68.97%
Formula
Percentage change = [(490 - 290) / 290] x 100
Subtract the new number by the original number
490 - 290 = 200
200 ÷ 290 = 0.6896551724137931
0.6896551724137931 x 100 = 68.97%