-67.59% is the change from 978 to 317
Calculation steps:
[( 317 - 978 ) ÷ 978] x 100 = -67.59%
Formula
Percentage change = [(317 - 978) / 978] x 100
Subtract the new number by the original number
317 - 978 = -661
-661 ÷ 978 = -0.6758691206543967
-0.6758691206543967 x 100 = -67.59%