-43.93% is the change from 981 to 550
Calculation steps:
[( 550 - 981 ) ÷ 981] x 100 = -43.93%
Formula
Percentage change = [(550 - 981) / 981] x 100
Subtract the new number by the original number
550 - 981 = -431
-431 ÷ 981 = -0.43934760448521915
-0.43934760448521915 x 100 = -43.93%