-10.07% is the change from 566 to 509
Calculation steps:
[( 509 - 566 ) ÷ 566] x 100 = -10.07%
Formula
Percentage change = [(509 - 566) / 566] x 100
Subtract the new number by the original number
509 - 566 = -57
-57 ÷ 566 = -0.10070671378091872
-0.10070671378091872 x 100 = -10.07%