-83.54% is the change from 978 to 161
Calculation steps:
[( 161 - 978 ) ÷ 978] x 100 = -83.54%
Formula
Percentage change = [(161 - 978) / 978] x 100
Subtract the new number by the original number
161 - 978 = -817
-817 ÷ 978 = -0.8353783231083844
-0.8353783231083844 x 100 = -83.54%