-10.66% is the change from 816 to 729
Calculation steps:
[( 729 - 816 ) ÷ 816] x 100 = -10.66%
Formula
Percentage change = [(729 - 816) / 816] x 100
Subtract the new number by the original number
729 - 816 = -87
-87 ÷ 816 = -0.10661764705882353
-0.10661764705882353 x 100 = -10.66%