-16.51% is the change from 981 to 819
Calculation steps:
[( 819 - 981 ) ÷ 981] x 100 = -16.51%
Formula
Percentage change = [(819 - 981) / 981] x 100
Subtract the new number by the original number
819 - 981 = -162
-162 ÷ 981 = -0.1651376146788991
-0.1651376146788991 x 100 = -16.51%