493.57% is the change from 140 to 831
Calculation steps:
[( 831 - 140 ) ÷ 140] x 100 = 493.57%
Formula
Percentage change = [(831 - 140) / 140] x 100
Subtract the new number by the original number
831 - 140 = 691
691 ÷ 140 = 4.935714285714286
4.935714285714286 x 100 = 493.57%