-74.55% is the change from 220 to 56
Calculation steps:
[( 56 - 220 ) ÷ 220] x 100 = -74.55%
Formula
Percentage change = [(56 - 220) / 220] x 100
Subtract the new number by the original number
56 - 220 = -164
-164 ÷ 220 = -0.7454545454545455
-0.7454545454545455 x 100 = -74.55%