-16.64% is the change from 673 to 561
Calculation steps:
[( 561 - 673 ) ÷ 673] x 100 = -16.64%
Formula
Percentage change = [(561 - 673) / 673] x 100
Subtract the new number by the original number
561 - 673 = -112
-112 ÷ 673 = -0.1664190193164933
-0.1664190193164933 x 100 = -16.64%