309.74% is the change from 154 to 631
Calculation steps:
[( 631 - 154 ) ÷ 154] x 100 = 309.74%
Formula
Percentage change = [(631 - 154) / 154] x 100
Subtract the new number by the original number
631 - 154 = 477
477 ÷ 154 = 3.0974025974025974
3.0974025974025974 x 100 = 309.74%