-56.66% is the change from 706 to 306
Calculation steps:
[( 306 - 706 ) ÷ 706] x 100 = -56.66%
Formula
Percentage change = [(306 - 706) / 706] x 100
Subtract the new number by the original number
306 - 706 = -400
-400 ÷ 706 = -0.56657223796034
-0.56657223796034 x 100 = -56.66%