-96.38% is the change from 221 to 8
Calculation steps:
[( 8 - 221 ) ÷ 221] x 100 = -96.38%
Formula
Percentage change = [(8 - 221) / 221] x 100
Subtract the new number by the original number
8 - 221 = -213
-213 ÷ 221 = -0.9638009049773756
-0.9638009049773756 x 100 = -96.38%