21.79% is the change from 280 to 341
Calculation steps:
[( 341 - 280 ) ÷ 280] x 100 = 21.79%
Formula
Percentage change = [(341 - 280) / 280] x 100
Subtract the new number by the original number
341 - 280 = 61
61 ÷ 280 = 0.21785714285714286
0.21785714285714286 x 100 = 21.79%