-3.08% is the change from 584 to 566
Calculation steps:
[( 566 - 584 ) ÷ 584] x 100 = -3.08%
Formula
Percentage change = [(566 - 584) / 584] x 100
Subtract the new number by the original number
566 - 584 = -18
-18 ÷ 584 = -0.030821917808219176
-0.030821917808219176 x 100 = -3.08%