2.75% is the change from 400 to 411
Calculation steps:
[( 411 - 400 ) ÷ 400] x 100 = 2.75%
Formula
Percentage change = [(411 - 400) / 400] x 100
Subtract the new number by the original number
411 - 400 = 11
11 ÷ 400 = 0.0275
0.0275 x 100 = 2.75%
Example