108.75% is the change from 400 to 835
Calculation steps:
[( 835 - 400 ) ÷ 400] x 100 = 108.75%
Formula
Percentage change = [(835 - 400) / 400] x 100
Subtract the new number by the original number
835 - 400 = 435
435 ÷ 400 = 1.0875
1.0875 x 100 = 108.75%