56.25% is the change from 400 to 625
Calculation steps:
[( 625 - 400 ) ÷ 400] x 100 = 56.25%
Formula
Percentage change = [(625 - 400) / 400] x 100
Subtract the new number by the original number
625 - 400 = 225
225 ÷ 400 = 0.5625
0.5625 x 100 = 56.25%