85.75% is the change from 400 to 743
Calculation steps:
[( 743 - 400 ) ÷ 400] x 100 = 85.75%
Formula
Percentage change = [(743 - 400) / 400] x 100
Subtract the new number by the original number
743 - 400 = 343
343 ÷ 400 = 0.8575
0.8575 x 100 = 85.75%