2.58% is the change from 271 to 278
Calculation steps:
[( 278 - 271 ) ÷ 271] x 100 = 2.58%
Formula
Percentage change = [(278 - 271) / 271] x 100
Subtract the new number by the original number
278 - 271 = 7
7 ÷ 271 = 0.025830258302583026
0.025830258302583026 x 100 = 2.58%