6.96% is the change from 388 to 415
Calculation steps:
[( 415 - 388 ) ÷ 388] x 100 = 6.96%
Formula
Percentage change = [(415 - 388) / 388] x 100
Subtract the new number by the original number
415 - 388 = 27
27 ÷ 388 = 0.06958762886597938
0.06958762886597938 x 100 = 6.96%