-18.51% is the change from 897 to 731
Calculation steps:
[( 731 - 897 ) ÷ 897] x 100 = -18.51%
Formula
Percentage change = [(731 - 897) / 897] x 100
Subtract the new number by the original number
731 - 897 = -166
-166 ÷ 897 = -0.1850613154960981
-0.1850613154960981 x 100 = -18.51%