-94.32% is the change from 317 to 18
Calculation steps:
[( 18 - 317 ) ÷ 317] x 100 = -94.32%
Formula
Percentage change = [(18 - 317) / 317] x 100
Subtract the new number by the original number
18 - 317 = -299
-299 ÷ 317 = -0.943217665615142
-0.943217665615142 x 100 = -94.32%