74% is the change from 400 to 696
Calculation steps:
[( 696 - 400 ) ÷ 400] x 100 = 74%
Formula
Percentage change = [(696 - 400) / 400] x 100
Subtract the new number by the original number
696 - 400 = 296
296 ÷ 400 = 0.74
0.74 x 100 = 74%
Example