-15.99% is the change from 963 to 809
Calculation steps:
[( 809 - 963 ) ÷ 963] x 100 = -15.99%
Formula
Percentage change = [(809 - 963) / 963] x 100
Subtract the new number by the original number
809 - 963 = -154
-154 ÷ 963 = -0.15991692627206647
-0.15991692627206647 x 100 = -15.99%