21.15% is the change from 279 to 338
Calculation steps:
[( 338 - 279 ) ÷ 279] x 100 = 21.15%
Formula
Percentage change = [(338 - 279) / 279] x 100
Subtract the new number by the original number
338 - 279 = 59
59 ÷ 279 = 0.2114695340501792
0.2114695340501792 x 100 = 21.15%