-18.84% is the change from 897 to 728
Calculation steps:
[( 728 - 897 ) ÷ 897] x 100 = -18.84%
Formula
Percentage change = [(728 - 897) / 897] x 100
Subtract the new number by the original number
728 - 897 = -169
-169 ÷ 897 = -0.18840579710144928
-0.18840579710144928 x 100 = -18.84%