-81.87% is the change from 943 to 171
Calculation steps:
[( 171 - 943 ) ÷ 943] x 100 = -81.87%
Formula
Percentage change = [(171 - 943) / 943] x 100
Subtract the new number by the original number
171 - 943 = -772
-772 ÷ 943 = -0.8186638388123012
-0.8186638388123012 x 100 = -81.87%