-6.28% is the change from 223 to 209
Calculation steps:
[( 209 - 223 ) ÷ 223] x 100 = -6.28%
Formula
Percentage change = [(209 - 223) / 223] x 100
Subtract the new number by the original number
209 - 223 = -14
-14 ÷ 223 = -0.06278026905829596
-0.06278026905829596 x 100 = -6.28%