74.75% is the change from 400 to 699
Calculation steps:
[( 699 - 400 ) ÷ 400] x 100 = 74.75%
Formula
Percentage change = [(699 - 400) / 400] x 100
Subtract the new number by the original number
699 - 400 = 299
299 ÷ 400 = 0.7475
0.7475 x 100 = 74.75%