-26.8% is the change from 970 to 710
Calculation steps:
[( 710 - 970 ) ÷ 970] x 100 = -26.8%
Formula
Percentage change = [(710 - 970) / 970] x 100
Subtract the new number by the original number
710 - 970 = -260
-260 ÷ 970 = -0.26804123711340205
-0.26804123711340205 x 100 = -26.8%