28.62% is the change from 276 to 355
Calculation steps:
[( 355 - 276 ) ÷ 276] x 100 = 28.62%
Formula
Percentage change = [(355 - 276) / 276] x 100
Subtract the new number by the original number
355 - 276 = 79
79 ÷ 276 = 0.286231884057971
0.286231884057971 x 100 = 28.62%