-81.18% is the change from 919 to 173
Calculation steps:
[( 173 - 919 ) ÷ 919] x 100 = -81.18%
Formula
Percentage change = [(173 - 919) / 919] x 100
Subtract the new number by the original number
173 - 919 = -746
-746 ÷ 919 = -0.8117519042437432
-0.8117519042437432 x 100 = -81.18%