7.72% is the change from 259 to 279
Calculation steps:
[( 279 - 259 ) ÷ 259] x 100 = 7.72%
Formula
Percentage change = [(279 - 259) / 259] x 100
Subtract the new number by the original number
279 - 259 = 20
20 ÷ 259 = 0.07722007722007722
0.07722007722007722 x 100 = 7.72%