-5.67% is the change from 706 to 666
Calculation steps:
[( 666 - 706 ) ÷ 706] x 100 = -5.67%
Formula
Percentage change = [(666 - 706) / 706] x 100
Subtract the new number by the original number
666 - 706 = -40
-40 ÷ 706 = -0.056657223796033995
-0.056657223796033995 x 100 = -5.67%