78.57% is the change from 224 to 400
Calculation steps:
[( 400 - 224 ) ÷ 224] x 100 = 78.57%
Formula
Percentage change = [(400 - 224) / 224] x 100
Subtract the new number by the original number
400 - 224 = 176
176 ÷ 224 = 0.7857142857142857
0.7857142857142857 x 100 = 78.57%