-11.11% is the change from 729 to 648
Calculation steps:
[( 648 - 729 ) ÷ 729] x 100 = -11.11%
Formula
Percentage change = [(648 - 729) / 729] x 100
Subtract the new number by the original number
648 - 729 = -81
-81 ÷ 729 = -0.1111111111111111
-0.1111111111111111 x 100 = -11.11%