-81.63% is the change from 942 to 173
Calculation steps:
[( 173 - 942 ) ÷ 942] x 100 = -81.63%
Formula
Percentage change = [(173 - 942) / 942] x 100
Subtract the new number by the original number
173 - 942 = -769
-769 ÷ 942 = -0.8163481953290871
-0.8163481953290871 x 100 = -81.63%