43.5% is the change from 400 to 574
Calculation steps:
[( 574 - 400 ) ÷ 400] x 100 = 43.5%
Formula
Percentage change = [(574 - 400) / 400] x 100
Subtract the new number by the original number
574 - 400 = 174
174 ÷ 400 = 0.435
0.435 x 100 = 43.5%
Example