-94.36% is the change from 319 to 18
Calculation steps:
[( 18 - 319 ) ÷ 319] x 100 = -94.36%
Formula
Percentage change = [(18 - 319) / 319] x 100
Subtract the new number by the original number
18 - 319 = -301
-301 ÷ 319 = -0.9435736677115988
-0.9435736677115988 x 100 = -94.36%