-18.91% is the change from 899 to 729
Calculation steps:
[( 729 - 899 ) ÷ 899] x 100 = -18.91%
Formula
Percentage change = [(729 - 899) / 899] x 100
Subtract the new number by the original number
729 - 899 = -170
-170 ÷ 899 = -0.18909899888765294
-0.18909899888765294 x 100 = -18.91%