20.54% is the change from 224 to 270
Calculation steps:
[( 270 - 224 ) ÷ 224] x 100 = 20.54%
Formula
Percentage change = [(270 - 224) / 224] x 100
Subtract the new number by the original number
270 - 224 = 46
46 ÷ 224 = 0.20535714285714285
0.20535714285714285 x 100 = 20.54%