-56.29% is the change from 700 to 306
Calculation steps:
[( 306 - 700 ) ÷ 700] x 100 = -56.29%
Formula
Percentage change = [(306 - 700) / 700] x 100
Subtract the new number by the original number
306 - 700 = -394
-394 ÷ 700 = -0.5628571428571428
-0.5628571428571428 x 100 = -56.29%