-57.04% is the change from 710 to 305
Calculation steps:
[( 305 - 710 ) ÷ 710] x 100 = -57.04%
Formula
Percentage change = [(305 - 710) / 710] x 100
Subtract the new number by the original number
305 - 710 = -405
-405 ÷ 710 = -0.5704225352112676
-0.5704225352112676 x 100 = -57.04%