223.74% is the change from 139 to 450
Calculation steps:
[( 450 - 139 ) ÷ 139] x 100 = 223.74%
Formula
Percentage change = [(450 - 139) / 139] x 100
Subtract the new number by the original number
450 - 139 = 311
311 ÷ 139 = 2.237410071942446
2.237410071942446 x 100 = 223.74%