106.06% is the change from 330 to 680
Calculation steps:
[( 680 - 330 ) ÷ 330] x 100 = 106.06%
Formula
Percentage change = [(680 - 330) / 330] x 100
Subtract the new number by the original number
680 - 330 = 350
350 ÷ 330 = 1.0606060606060606
1.0606060606060606 x 100 = 106.06%