-17.04% is the change from 270 to 224
Calculation steps:
[( 224 - 270 ) ÷ 270] x 100 = -17.04%
Formula
Percentage change = [(224 - 270) / 270] x 100
Subtract the new number by the original number
224 - 270 = -46
-46 ÷ 270 = -0.17037037037037037
-0.17037037037037037 x 100 = -17.04%