-81.47% is the change from 928 to 172
Calculation steps:
[( 172 - 928 ) ÷ 928] x 100 = -81.47%
Formula
Percentage change = [(172 - 928) / 928] x 100
Subtract the new number by the original number
172 - 928 = -756
-756 ÷ 928 = -0.8146551724137931
-0.8146551724137931 x 100 = -81.47%