-63.94% is the change from 710 to 256
Calculation steps:
[( 256 - 710 ) ÷ 710] x 100 = -63.94%
Formula
Percentage change = [(256 - 710) / 710] x 100
Subtract the new number by the original number
256 - 710 = -454
-454 ÷ 710 = -0.6394366197183099
-0.6394366197183099 x 100 = -63.94%