41.75% is the change from 388 to 550
Calculation steps:
[( 550 - 388 ) ÷ 388] x 100 = 41.75%
Formula
Percentage change = [(550 - 388) / 388] x 100
Subtract the new number by the original number
550 - 388 = 162
162 ÷ 388 = 0.4175257731958763
0.4175257731958763 x 100 = 41.75%