-71.57% is the change from 978 to 278
Calculation steps:
[( 278 - 978 ) ÷ 978] x 100 = -71.57%
Formula
Percentage change = [(278 - 978) / 978] x 100
Subtract the new number by the original number
278 - 978 = -700
-700 ÷ 978 = -0.7157464212678937
-0.7157464212678937 x 100 = -71.57%