-81.03% is the change from 912 to 173
Calculation steps:
[( 173 - 912 ) ÷ 912] x 100 = -81.03%
Formula
Percentage change = [(173 - 912) / 912] x 100
Subtract the new number by the original number
173 - 912 = -739
-739 ÷ 912 = -0.8103070175438597
-0.8103070175438597 x 100 = -81.03%