-8.71% is the change from 666 to 608
Calculation steps:
[( 608 - 666 ) ÷ 666] x 100 = -8.71%
Formula
Percentage change = [(608 - 666) / 666] x 100
Subtract the new number by the original number
608 - 666 = -58
-58 ÷ 666 = -0.08708708708708708
-0.08708708708708708 x 100 = -8.71%