-17.69% is the change from 978 to 805
Calculation steps:
[( 805 - 978 ) ÷ 978] x 100 = -17.69%
Formula
Percentage change = [(805 - 978) / 978] x 100
Subtract the new number by the original number
805 - 978 = -173
-173 ÷ 978 = -0.1768916155419223
-0.1768916155419223 x 100 = -17.69%