74.5% is the change from 400 to 698
Calculation steps:
[( 698 - 400 ) ÷ 400] x 100 = 74.5%
Formula
Percentage change = [(698 - 400) / 400] x 100
Subtract the new number by the original number
698 - 400 = 298
298 ÷ 400 = 0.745
0.745 x 100 = 74.5%
Example