506.57% is the change from 137 to 831
Calculation steps:
[( 831 - 137 ) ÷ 137] x 100 = 506.57%
Formula
Percentage change = [(831 - 137) / 137] x 100
Subtract the new number by the original number
831 - 137 = 694
694 ÷ 137 = 5.065693430656935
5.065693430656935 x 100 = 506.57%