-57.14% is the change from 714 to 306
Calculation steps:
[( 306 - 714 ) ÷ 714] x 100 = -57.14%
Formula
Percentage change = [(306 - 714) / 714] x 100
Subtract the new number by the original number
306 - 714 = -408
-408 ÷ 714 = -0.5714285714285714
-0.5714285714285714 x 100 = -57.14%