251.08% is the change from 139 to 488
Calculation steps:
[( 488 - 139 ) ÷ 139] x 100 = 251.08%
Formula
Percentage change = [(488 - 139) / 139] x 100
Subtract the new number by the original number
488 - 139 = 349
349 ÷ 139 = 2.5107913669064748
2.5107913669064748 x 100 = 251.08%