44.83% is the change from 290 to 420
Calculation steps:
[( 420 - 290 ) ÷ 290] x 100 = 44.83%
Formula
Percentage change = [(420 - 290) / 290] x 100
Subtract the new number by the original number
420 - 290 = 130
130 ÷ 290 = 0.4482758620689655
0.4482758620689655 x 100 = 44.83%