-95.93% is the change from 221 to 9
Calculation steps:
[( 9 - 221 ) ÷ 221] x 100 = -95.93%
Formula
Percentage change = [(9 - 221) / 221] x 100
Subtract the new number by the original number
9 - 221 = -212
-212 ÷ 221 = -0.9592760180995475
-0.9592760180995475 x 100 = -95.93%