-11.45% is the change from 978 to 866
Calculation steps:
[( 866 - 978 ) ÷ 978] x 100 = -11.45%
Formula
Percentage change = [(866 - 978) / 978] x 100
Subtract the new number by the original number
866 - 978 = -112
-112 ÷ 978 = -0.11451942740286299
-0.11451942740286299 x 100 = -11.45%