237.58% is the change from 149 to 503
Calculation steps:
[( 503 - 149 ) ÷ 149] x 100 = 237.58%
Formula
Percentage change = [(503 - 149) / 149] x 100
Subtract the new number by the original number
503 - 149 = 354
354 ÷ 149 = 2.3758389261744965
2.3758389261744965 x 100 = 237.58%