-56.72% is the change from 707 to 306
Calculation steps:
[( 306 - 707 ) ÷ 707] x 100 = -56.72%
Formula
Percentage change = [(306 - 707) / 707] x 100
Subtract the new number by the original number
306 - 707 = -401
-401 ÷ 707 = -0.5671852899575672
-0.5671852899575672 x 100 = -56.72%