-75.45% is the change from 220 to 54
Calculation steps:
[( 54 - 220 ) ÷ 220] x 100 = -75.45%
Formula
Percentage change = [(54 - 220) / 220] x 100
Subtract the new number by the original number
54 - 220 = -166
-166 ÷ 220 = -0.7545454545454545
-0.7545454545454545 x 100 = -75.45%