-50.46% is the change from 981 to 486
Calculation steps:
[( 486 - 981 ) ÷ 981] x 100 = -50.46%
Formula
Percentage change = [(486 - 981) / 981] x 100
Subtract the new number by the original number
486 - 981 = -495
-495 ÷ 981 = -0.5045871559633027
-0.5045871559633027 x 100 = -50.46%