-74.21% is the change from 221 to 57
Calculation steps:
[( 57 - 221 ) ÷ 221] x 100 = -74.21%
Formula
Percentage change = [(57 - 221) / 221] x 100
Subtract the new number by the original number
57 - 221 = -164
-164 ÷ 221 = -0.7420814479638009
-0.7420814479638009 x 100 = -74.21%