250.32% is the change from 157 to 550
Calculation steps:
[( 550 - 157 ) ÷ 157] x 100 = 250.32%
Formula
Percentage change = [(550 - 157) / 157] x 100
Subtract the new number by the original number
550 - 157 = 393
393 ÷ 157 = 2.5031847133757963
2.5031847133757963 x 100 = 250.32%