-81.98% is the change from 971 to 175
Calculation steps:
[( 175 - 971 ) ÷ 971] x 100 = -81.98%
Formula
Percentage change = [(175 - 971) / 971] x 100
Subtract the new number by the original number
175 - 971 = -796
-796 ÷ 971 = -0.819773429454171
-0.819773429454171 x 100 = -81.98%