-17.19% is the change from 221 to 183
Calculation steps:
[( 183 - 221 ) ÷ 221] x 100 = -17.19%
Formula
Percentage change = [(183 - 221) / 221] x 100
Subtract the new number by the original number
183 - 221 = -38
-38 ÷ 221 = -0.17194570135746606
-0.17194570135746606 x 100 = -17.19%