-49.01% is the change from 604 to 308
Calculation steps:
[( 308 - 604 ) ÷ 604] x 100 = -49.01%
Formula
Percentage change = [(308 - 604) / 604] x 100
Subtract the new number by the original number
308 - 604 = -296
-296 ÷ 604 = -0.4900662251655629
-0.4900662251655629 x 100 = -49.01%