-2.74% is the change from 730 to 710
Calculation steps:
[( 710 - 730 ) ÷ 730] x 100 = -2.74%
Formula
Percentage change = [(710 - 730) / 730] x 100
Subtract the new number by the original number
710 - 730 = -20
-20 ÷ 730 = -0.0273972602739726
-0.0273972602739726 x 100 = -2.74%