278.42% is the change from 139 to 526
Calculation steps:
[( 526 - 139 ) ÷ 139] x 100 = 278.42%
Formula
Percentage change = [(526 - 139) / 139] x 100
Subtract the new number by the original number
526 - 139 = 387
387 ÷ 139 = 2.7841726618705036
2.7841726618705036 x 100 = 278.42%