-81.05% is the change from 897 to 170
Calculation steps:
[( 170 - 897 ) ÷ 897] x 100 = -81.05%
Formula
Percentage change = [(170 - 897) / 897] x 100
Subtract the new number by the original number
170 - 897 = -727
-727 ÷ 897 = -0.810479375696767
-0.810479375696767 x 100 = -81.05%