-80.71% is the change from 897 to 173
Calculation steps:
[( 173 - 897 ) ÷ 897] x 100 = -80.71%
Formula
Percentage change = [(173 - 897) / 897] x 100
Subtract the new number by the original number
173 - 897 = -724
-724 ÷ 897 = -0.8071348940914158
-0.8071348940914158 x 100 = -80.71%