128.87% is the change from 388 to 888
Calculation steps:
[( 888 - 388 ) ÷ 388] x 100 = 128.87%
Formula
Percentage change = [(888 - 388) / 388] x 100
Subtract the new number by the original number
888 - 388 = 500
500 ÷ 388 = 1.288659793814433
1.288659793814433 x 100 = 128.87%