53.57% is the change from 224 to 344
Calculation steps:
[( 344 - 224 ) ÷ 224] x 100 = 53.57%
Formula
Percentage change = [(344 - 224) / 224] x 100
Subtract the new number by the original number
344 - 224 = 120
120 ÷ 224 = 0.5357142857142857
0.5357142857142857 x 100 = 53.57%