-60.91% is the change from 220 to 86
Calculation steps:
[( 86 - 220 ) ÷ 220] x 100 = -60.91%
Formula
Percentage change = [(86 - 220) / 220] x 100
Subtract the new number by the original number
86 - 220 = -134
-134 ÷ 220 = -0.6090909090909091
-0.6090909090909091 x 100 = -60.91%