-8.92% is the change from 729 to 664
Calculation steps:
[( 664 - 729 ) ÷ 729] x 100 = -8.92%
Formula
Percentage change = [(664 - 729) / 729] x 100
Subtract the new number by the original number
664 - 729 = -65
-65 ÷ 729 = -0.08916323731138547
-0.08916323731138547 x 100 = -8.92%