7.86% is the change from 280 to 302
Calculation steps:
[( 302 - 280 ) ÷ 280] x 100 = 7.86%
Formula
Percentage change = [(302 - 280) / 280] x 100
Subtract the new number by the original number
302 - 280 = 22
22 ÷ 280 = 0.07857142857142857
0.07857142857142857 x 100 = 7.86%