88.75% is the change from 400 to 755
Calculation steps:
[( 755 - 400 ) ÷ 400] x 100 = 88.75%
Formula
Percentage change = [(755 - 400) / 400] x 100
Subtract the new number by the original number
755 - 400 = 355
355 ÷ 400 = 0.8875
0.8875 x 100 = 88.75%