46.75% is the change from 400 to 587
Calculation steps:
[( 587 - 400 ) ÷ 400] x 100 = 46.75%
Formula
Percentage change = [(587 - 400) / 400] x 100
Subtract the new number by the original number
587 - 400 = 187
187 ÷ 400 = 0.4675
0.4675 x 100 = 46.75%