-81% is the change from 921 to 175
Calculation steps:
[( 175 - 921 ) ÷ 921] x 100 = -81%
Formula
Percentage change = [(175 - 921) / 921] x 100
Subtract the new number by the original number
175 - 921 = -746
-746 ÷ 921 = -0.8099891422366993
-0.8099891422366993 x 100 = -81%