-81.26% is the change from 918 to 172
Calculation steps:
[( 172 - 918 ) ÷ 918] x 100 = -81.26%
Formula
Percentage change = [(172 - 918) / 918] x 100
Subtract the new number by the original number
172 - 918 = -746
-746 ÷ 918 = -0.8126361655773421
-0.8126361655773421 x 100 = -81.26%