-91.26% is the change from 206 to 18
Calculation steps:
[( 18 - 206 ) ÷ 206] x 100 = -91.26%
Formula
Percentage change = [(18 - 206) / 206] x 100
Subtract the new number by the original number
18 - 206 = -188
-188 ÷ 206 = -0.912621359223301
-0.912621359223301 x 100 = -91.26%