1285.71% is the change from 28 to 388
Calculation steps:
[( 388 - 28 ) ÷ 28] x 100 = 1285.71%
Formula
Percentage change = [(388 - 28) / 28] x 100
Subtract the new number by the original number
388 - 28 = 360
360 ÷ 28 = 12.857142857142858
12.857142857142858 x 100 = 1285.71%