-45.23% is the change from 566 to 310
Calculation steps:
[( 310 - 566 ) ÷ 566] x 100 = -45.23%
Formula
Percentage change = [(310 - 566) / 566] x 100
Subtract the new number by the original number
310 - 566 = -256
-256 ÷ 566 = -0.45229681978798586
-0.45229681978798586 x 100 = -45.23%