-50.56% is the change from 987 to 488
Calculation steps:
[( 488 - 987 ) ÷ 987] x 100 = -50.56%
Formula
Percentage change = [(488 - 987) / 987] x 100
Subtract the new number by the original number
488 - 987 = -499
-499 ÷ 987 = -0.5055724417426545
-0.5055724417426545 x 100 = -50.56%