2.83% is the change from 389 to 400
Calculation steps:
[( 400 - 389 ) ÷ 389] x 100 = 2.83%
Formula
Percentage change = [(400 - 389) / 389] x 100
Subtract the new number by the original number
400 - 389 = 11
11 ÷ 389 = 0.028277634961439587
0.028277634961439587 x 100 = 2.83%