40.58% is the change from 276 to 388
Calculation steps:
[( 388 - 276 ) ÷ 276] x 100 = 40.58%
Formula
Percentage change = [(388 - 276) / 276] x 100
Subtract the new number by the original number
388 - 276 = 112
112 ÷ 276 = 0.4057971014492754
0.4057971014492754 x 100 = 40.58%