-15.47% is the change from 666 to 563
Calculation steps:
[( 563 - 666 ) ÷ 666] x 100 = -15.47%
Formula
Percentage change = [(563 - 666) / 666] x 100
Subtract the new number by the original number
563 - 666 = -103
-103 ÷ 666 = -0.15465465465465467
-0.15465465465465467 x 100 = -15.47%