17.36% is the change from 288 to 338
Calculation steps:
[( 338 - 288 ) ÷ 288] x 100 = 17.36%
Formula
Percentage change = [(338 - 288) / 288] x 100
Subtract the new number by the original number
338 - 288 = 50
50 ÷ 288 = 0.1736111111111111
0.1736111111111111 x 100 = 17.36%