7.99% is the change from 388 to 419
Calculation steps:
[( 419 - 388 ) ÷ 388] x 100 = 7.99%
Formula
Percentage change = [(419 - 388) / 388] x 100
Subtract the new number by the original number
419 - 388 = 31
31 ÷ 388 = 0.07989690721649484
0.07989690721649484 x 100 = 7.99%