-91.59% is the change from 214 to 18
Calculation steps:
[( 18 - 214 ) ÷ 214] x 100 = -91.59%
Formula
Percentage change = [(18 - 214) / 214] x 100
Subtract the new number by the original number
18 - 214 = -196
-196 ÷ 214 = -0.9158878504672897
-0.9158878504672897 x 100 = -91.59%