-49.9% is the change from 974 to 488
Calculation steps:
[( 488 - 974 ) ÷ 974] x 100 = -49.9%
Formula
Percentage change = [(488 - 974) / 974] x 100
Subtract the new number by the original number
488 - 974 = -486
-486 ÷ 974 = -0.4989733059548255
-0.4989733059548255 x 100 = -49.9%