10.63% is the change from 320 to 354
Calculation steps:
[( 354 - 320 ) ÷ 320] x 100 = 10.63%
Formula
Percentage change = [(354 - 320) / 320] x 100
Subtract the new number by the original number
354 - 320 = 34
34 ÷ 320 = 0.10625
0.10625 x 100 = 10.63%