339.68% is the change from 189 to 831
Calculation steps:
[( 831 - 189 ) ÷ 189] x 100 = 339.68%
Formula
Percentage change = [(831 - 189) / 189] x 100
Subtract the new number by the original number
831 - 189 = 642
642 ÷ 189 = 3.3968253968253967
3.3968253968253967 x 100 = 339.68%