-17.53% is the change from 981 to 809
Calculation steps:
[( 809 - 981 ) ÷ 981] x 100 = -17.53%
Formula
Percentage change = [(809 - 981) / 981] x 100
Subtract the new number by the original number
809 - 981 = -172
-172 ÷ 981 = -0.17533129459734964
-0.17533129459734964 x 100 = -17.53%