-3.25% is the change from 585 to 566
Calculation steps:
[( 566 - 585 ) ÷ 585] x 100 = -3.25%
Formula
Percentage change = [(566 - 585) / 585] x 100
Subtract the new number by the original number
566 - 585 = -19
-19 ÷ 585 = -0.03247863247863248
-0.03247863247863248 x 100 = -3.25%