-60.19% is the change from 638 to 254
Calculation steps:
[( 254 - 638 ) ÷ 638] x 100 = -60.19%
Formula
Percentage change = [(254 - 638) / 638] x 100
Subtract the new number by the original number
254 - 638 = -384
-384 ÷ 638 = -0.6018808777429467
-0.6018808777429467 x 100 = -60.19%