-70.76% is the change from 978 to 286
Calculation steps:
[( 286 - 978 ) ÷ 978] x 100 = -70.76%
Formula
Percentage change = [(286 - 978) / 978] x 100
Subtract the new number by the original number
286 - 978 = -692
-692 ÷ 978 = -0.7075664621676891
-0.7075664621676891 x 100 = -70.76%