343.39% is the change from 189 to 838
Calculation steps:
[( 838 - 189 ) ÷ 189] x 100 = 343.39%
Formula
Percentage change = [(838 - 189) / 189] x 100
Subtract the new number by the original number
838 - 189 = 649
649 ÷ 189 = 3.433862433862434
3.433862433862434 x 100 = 343.39%