3.88% is the change from 387 to 402
Calculation steps:
[( 402 - 387 ) ÷ 387] x 100 = 3.88%
Formula
Percentage change = [(402 - 387) / 387] x 100
Subtract the new number by the original number
402 - 387 = 15
15 ÷ 387 = 0.03875968992248062
0.03875968992248062 x 100 = 3.88%