22.14% is the change from 280 to 342
Calculation steps:
[( 342 - 280 ) ÷ 280] x 100 = 22.14%
Formula
Percentage change = [(342 - 280) / 280] x 100
Subtract the new number by the original number
342 - 280 = 62
62 ÷ 280 = 0.22142857142857142
0.22142857142857142 x 100 = 22.14%