3.08% is the change from 390 to 402
Calculation steps:
[( 402 - 390 ) ÷ 390] x 100 = 3.08%
Formula
Percentage change = [(402 - 390) / 390] x 100
Subtract the new number by the original number
402 - 390 = 12
12 ÷ 390 = 0.03076923076923077
0.03076923076923077 x 100 = 3.08%