-6.72% is the change from 714 to 666
Calculation steps:
[( 666 - 714 ) ÷ 714] x 100 = -6.72%
Formula
Percentage change = [(666 - 714) / 714] x 100
Subtract the new number by the original number
666 - 714 = -48
-48 ÷ 714 = -0.06722689075630252
-0.06722689075630252 x 100 = -6.72%