68.48% is the change from 330 to 556
Calculation steps:
[( 556 - 330 ) ÷ 330] x 100 = 68.48%
Formula
Percentage change = [(556 - 330) / 330] x 100
Subtract the new number by the original number
556 - 330 = 226
226 ÷ 330 = 0.6848484848484848
0.6848484848484848 x 100 = 68.48%