-80.39% is the change from 918 to 180
Calculation steps:
[( 180 - 918 ) ÷ 918] x 100 = -80.39%
Formula
Percentage change = [(180 - 918) / 918] x 100
Subtract the new number by the original number
180 - 918 = -738
-738 ÷ 918 = -0.803921568627451
-0.803921568627451 x 100 = -80.39%