10.05% is the change from 388 to 427
Calculation steps:
[( 427 - 388 ) ÷ 388] x 100 = 10.05%
Formula
Percentage change = [(427 - 388) / 388] x 100
Subtract the new number by the original number
427 - 388 = 39
39 ÷ 388 = 0.10051546391752578
0.10051546391752578 x 100 = 10.05%