270.5% is the change from 139 to 515
Calculation steps:
[( 515 - 139 ) ÷ 139] x 100 = 270.5%
Formula
Percentage change = [(515 - 139) / 139] x 100
Subtract the new number by the original number
515 - 139 = 376
376 ÷ 139 = 2.7050359712230216
2.7050359712230216 x 100 = 270.5%