-60% is the change from 220 to 88
Calculation steps:
[( 88 - 220 ) ÷ 220] x 100 = -60%
Formula
Percentage change = [(88 - 220) / 220] x 100
Subtract the new number by the original number
88 - 220 = -132
-132 ÷ 220 = -0.6
-0.6 x 100 = -60%
Example