-15.65% is the change from 671 to 566
Calculation steps:
[( 566 - 671 ) ÷ 671] x 100 = -15.65%
Formula
Percentage change = [(566 - 671) / 671] x 100
Subtract the new number by the original number
566 - 671 = -105
-105 ÷ 671 = -0.15648286140089418
-0.15648286140089418 x 100 = -15.65%