-55.12% is the change from 566 to 254
Calculation steps:
[( 254 - 566 ) ÷ 566] x 100 = -55.12%
Formula
Percentage change = [(254 - 566) / 566] x 100
Subtract the new number by the original number
254 - 566 = -312
-312 ÷ 566 = -0.5512367491166078
-0.5512367491166078 x 100 = -55.12%