-10.86% is the change from 221 to 197
Calculation steps:
[( 197 - 221 ) ÷ 221] x 100 = -10.86%
Formula
Percentage change = [(197 - 221) / 221] x 100
Subtract the new number by the original number
197 - 221 = -24
-24 ÷ 221 = -0.1085972850678733
-0.1085972850678733 x 100 = -10.86%