-83.64% is the change from 978 to 160
Calculation steps:
[( 160 - 978 ) ÷ 978] x 100 = -83.64%
Formula
Percentage change = [(160 - 978) / 978] x 100
Subtract the new number by the original number
160 - 978 = -818
-818 ÷ 978 = -0.83640081799591
-0.83640081799591 x 100 = -83.64%