-15.87% is the change from 668 to 562
Calculation steps:
[( 562 - 668 ) ÷ 668] x 100 = -15.87%
Formula
Percentage change = [(562 - 668) / 668] x 100
Subtract the new number by the original number
562 - 668 = -106
-106 ÷ 668 = -0.15868263473053892
-0.15868263473053892 x 100 = -15.87%