-0.81% is the change from 989 to 981
Calculation steps:
[( 981 - 989 ) ÷ 989] x 100 = -0.81%
Formula
Percentage change = [(981 - 989) / 989] x 100
Subtract the new number by the original number
981 - 989 = -8
-8 ÷ 989 = -0.008088978766430738
-0.008088978766430738 x 100 = -0.81%