-1.34% is the change from 224 to 221
Calculation steps:
[( 221 - 224 ) ÷ 224] x 100 = -1.34%
Formula
Percentage change = [(221 - 224) / 224] x 100
Subtract the new number by the original number
221 - 224 = -3
-3 ÷ 224 = -0.013392857142857142
-0.013392857142857142 x 100 = -1.34%