-12.67% is the change from 221 to 193
Calculation steps:
[( 193 - 221 ) ÷ 221] x 100 = -12.67%
Formula
Percentage change = [(193 - 221) / 221] x 100
Subtract the new number by the original number
193 - 221 = -28
-28 ÷ 221 = -0.12669683257918551
-0.12669683257918551 x 100 = -12.67%