-8.39% is the change from 727 to 666
Calculation steps:
[( 666 - 727 ) ÷ 727] x 100 = -8.39%
Formula
Percentage change = [(666 - 727) / 727] x 100
Subtract the new number by the original number
666 - 727 = -61
-61 ÷ 727 = -0.08390646492434663
-0.08390646492434663 x 100 = -8.39%