-18.73% is the change from 897 to 729
Calculation steps:
[( 729 - 897 ) ÷ 897] x 100 = -18.73%
Formula
Percentage change = [(729 - 897) / 897] x 100
Subtract the new number by the original number
729 - 897 = -168
-168 ÷ 897 = -0.18729096989966554
-0.18729096989966554 x 100 = -18.73%