27.14% is the change from 280 to 356
Calculation steps:
[( 356 - 280 ) ÷ 280] x 100 = 27.14%
Formula
Percentage change = [(356 - 280) / 280] x 100
Subtract the new number by the original number
356 - 280 = 76
76 ÷ 280 = 0.2714285714285714
0.2714285714285714 x 100 = 27.14%