250.34% is the change from 145 to 508
Calculation steps:
[( 508 - 145 ) ÷ 145] x 100 = 250.34%
Formula
Percentage change = [(508 - 145) / 145] x 100
Subtract the new number by the original number
508 - 145 = 363
363 ÷ 145 = 2.503448275862069
2.503448275862069 x 100 = 250.34%