273.53% is the change from 136 to 508
Calculation steps:
[( 508 - 136 ) ÷ 136] x 100 = 273.53%
Formula
Percentage change = [(508 - 136) / 136] x 100
Subtract the new number by the original number
508 - 136 = 372
372 ÷ 136 = 2.735294117647059
2.735294117647059 x 100 = 273.53%