48.48% is the change from 330 to 490
Calculation steps:
[( 490 - 330 ) ÷ 330] x 100 = 48.48%
Formula
Percentage change = [(490 - 330) / 330] x 100
Subtract the new number by the original number
490 - 330 = 160
160 ÷ 330 = 0.48484848484848486
0.48484848484848486 x 100 = 48.48%