-45.36% is the change from 560 to 306
Calculation steps:
[( 306 - 560 ) ÷ 560] x 100 = -45.36%
Formula
Percentage change = [(306 - 560) / 560] x 100
Subtract the new number by the original number
306 - 560 = -254
-254 ÷ 560 = -0.45357142857142857
-0.45357142857142857 x 100 = -45.36%