151.82% is the change from 330 to 831
Calculation steps:
[( 831 - 330 ) ÷ 330] x 100 = 151.82%
Formula
Percentage change = [(831 - 330) / 330] x 100
Subtract the new number by the original number
831 - 330 = 501
501 ÷ 330 = 1.518181818181818
1.518181818181818 x 100 = 151.82%