11.6% is the change from 250 to 279
Calculation steps:
[( 279 - 250 ) ÷ 250] x 100 = 11.6%
Formula
Percentage change = [(279 - 250) / 250] x 100
Subtract the new number by the original number
279 - 250 = 29
29 ÷ 250 = 0.116
0.116 x 100 = 11.6%
Example