57.58% is the change from 330 to 520
Calculation steps:
[( 520 - 330 ) ÷ 330] x 100 = 57.58%
Formula
Percentage change = [(520 - 330) / 330] x 100
Subtract the new number by the original number
520 - 330 = 190
190 ÷ 330 = 0.5757575757575758
0.5757575757575758 x 100 = 57.58%