47% is the change from 400 to 588
Calculation steps:
[( 588 - 400 ) ÷ 400] x 100 = 47%
Formula
Percentage change = [(588 - 400) / 400] x 100
Subtract the new number by the original number
588 - 400 = 188
188 ÷ 400 = 0.47
0.47 x 100 = 47%
Example