0.72% is the change from 278 to 280
Calculation steps:
[( 280 - 278 ) ÷ 278] x 100 = 0.72%
Formula
Percentage change = [(280 - 278) / 278] x 100
Subtract the new number by the original number
280 - 278 = 2
2 ÷ 278 = 0.007194244604316547
0.007194244604316547 x 100 = 0.72%