-86.82% is the change from 220 to 29
Calculation steps:
[( 29 - 220 ) ÷ 220] x 100 = -86.82%
Formula
Percentage change = [(29 - 220) / 220] x 100
Subtract the new number by the original number
29 - 220 = -191
-191 ÷ 220 = -0.8681818181818182
-0.8681818181818182 x 100 = -86.82%