323.45% is the change from 145 to 614
Calculation steps:
[( 614 - 145 ) ÷ 145] x 100 = 323.45%
Formula
Percentage change = [(614 - 145) / 145] x 100
Subtract the new number by the original number
614 - 145 = 469
469 ÷ 145 = 3.2344827586206897
3.2344827586206897 x 100 = 323.45%