-81.92% is the change from 918 to 166
Calculation steps:
[( 166 - 918 ) ÷ 918] x 100 = -81.92%
Formula
Percentage change = [(166 - 918) / 918] x 100
Subtract the new number by the original number
166 - 918 = -752
-752 ÷ 918 = -0.8191721132897604
-0.8191721132897604 x 100 = -81.92%