-91.74% is the change from 218 to 18
Calculation steps:
[( 18 - 218 ) ÷ 218] x 100 = -91.74%
Formula
Percentage change = [(18 - 218) / 218] x 100
Subtract the new number by the original number
18 - 218 = -200
-200 ÷ 218 = -0.9174311926605505
-0.9174311926605505 x 100 = -91.74%