520.15% is the change from 134 to 831
Calculation steps:
[( 831 - 134 ) ÷ 134] x 100 = 520.15%
Formula
Percentage change = [(831 - 134) / 134] x 100
Subtract the new number by the original number
831 - 134 = 697
697 ÷ 134 = 5.201492537313433
5.201492537313433 x 100 = 520.15%