-4.02% is the change from 224 to 215
Calculation steps:
[( 215 - 224 ) ÷ 224] x 100 = -4.02%
Formula
Percentage change = [(215 - 224) / 224] x 100
Subtract the new number by the original number
215 - 224 = -9
-9 ÷ 224 = -0.04017857142857143
-0.04017857142857143 x 100 = -4.02%