-14.63% is the change from 663 to 566
Calculation steps:
[( 566 - 663 ) ÷ 663] x 100 = -14.63%
Formula
Percentage change = [(566 - 663) / 663] x 100
Subtract the new number by the original number
566 - 663 = -97
-97 ÷ 663 = -0.14630467571644043
-0.14630467571644043 x 100 = -14.63%