-13.6% is the change from 978 to 845
Calculation steps:
[( 845 - 978 ) ÷ 978] x 100 = -13.6%
Formula
Percentage change = [(845 - 978) / 978] x 100
Subtract the new number by the original number
845 - 978 = -133
-133 ÷ 978 = -0.1359918200408998
-0.1359918200408998 x 100 = -13.6%