-8.67% is the change from 727 to 664
Calculation steps:
[( 664 - 727 ) ÷ 727] x 100 = -8.67%
Formula
Percentage change = [(664 - 727) / 727] x 100
Subtract the new number by the original number
664 - 727 = -63
-63 ÷ 727 = -0.08665749656121045
-0.08665749656121045 x 100 = -8.67%