-91.55% is the change from 213 to 18
Calculation steps:
[( 18 - 213 ) ÷ 213] x 100 = -91.55%
Formula
Percentage change = [(18 - 213) / 213] x 100
Subtract the new number by the original number
18 - 213 = -195
-195 ÷ 213 = -0.9154929577464789
-0.9154929577464789 x 100 = -91.55%