-81.45% is the change from 221 to 41
Calculation steps:
[( 41 - 221 ) ÷ 221] x 100 = -81.45%
Formula
Percentage change = [(41 - 221) / 221] x 100
Subtract the new number by the original number
41 - 221 = -180
-180 ÷ 221 = -0.8144796380090498
-0.8144796380090498 x 100 = -81.45%