296.4% is the change from 139 to 551
Calculation steps:
[( 551 - 139 ) ÷ 139] x 100 = 296.4%
Formula
Percentage change = [(551 - 139) / 139] x 100
Subtract the new number by the original number
551 - 139 = 412
412 ÷ 139 = 2.964028776978417
2.964028776978417 x 100 = 296.4%