-81.64% is the change from 937 to 172
Calculation steps:
[( 172 - 937 ) ÷ 937] x 100 = -81.64%
Formula
Percentage change = [(172 - 937) / 937] x 100
Subtract the new number by the original number
172 - 937 = -765
-765 ÷ 937 = -0.816435432230523
-0.816435432230523 x 100 = -81.64%