-81.68% is the change from 928 to 170
Calculation steps:
[( 170 - 928 ) ÷ 928] x 100 = -81.68%
Formula
Percentage change = [(170 - 928) / 928] x 100
Subtract the new number by the original number
170 - 928 = -758
-758 ÷ 928 = -0.8168103448275862
-0.8168103448275862 x 100 = -81.68%