-27.4% is the change from 978 to 710
Calculation steps:
[( 710 - 978 ) ÷ 978] x 100 = -27.4%
Formula
Percentage change = [(710 - 978) / 978] x 100
Subtract the new number by the original number
710 - 978 = -268
-268 ÷ 978 = -0.2740286298568507
-0.2740286298568507 x 100 = -27.4%