-80.85% is the change from 893 to 171
Calculation steps:
[( 171 - 893 ) ÷ 893] x 100 = -80.85%
Formula
Percentage change = [(171 - 893) / 893] x 100
Subtract the new number by the original number
171 - 893 = -722
-722 ÷ 893 = -0.8085106382978723
-0.8085106382978723 x 100 = -80.85%