68.79% is the change from 330 to 557
Calculation steps:
[( 557 - 330 ) ÷ 330] x 100 = 68.79%
Formula
Percentage change = [(557 - 330) / 330] x 100
Subtract the new number by the original number
557 - 330 = 227
227 ÷ 330 = 0.6878787878787879
0.6878787878787879 x 100 = 68.79%