28.57% is the change from 280 to 360
Calculation steps:
[( 360 - 280 ) ÷ 280] x 100 = 28.57%
Formula
Percentage change = [(360 - 280) / 280] x 100
Subtract the new number by the original number
360 - 280 = 80
80 ÷ 280 = 0.2857142857142857
0.2857142857142857 x 100 = 28.57%