258.99% is the change from 139 to 499
Calculation steps:
[( 499 - 139 ) ÷ 139] x 100 = 258.99%
Formula
Percentage change = [(499 - 139) / 139] x 100
Subtract the new number by the original number
499 - 139 = 360
360 ÷ 139 = 2.5899280575539567
2.5899280575539567 x 100 = 258.99%