-15.4% is the change from 669 to 566
Calculation steps:
[( 566 - 669 ) ÷ 669] x 100 = -15.4%
Formula
Percentage change = [(566 - 669) / 669] x 100
Subtract the new number by the original number
566 - 669 = -103
-103 ÷ 669 = -0.15396113602391628
-0.15396113602391628 x 100 = -15.4%