13.75% is the change from 320 to 364
Calculation steps:
[( 364 - 320 ) ÷ 320] x 100 = 13.75%
Formula
Percentage change = [(364 - 320) / 320] x 100
Subtract the new number by the original number
364 - 320 = 44
44 ÷ 320 = 0.1375
0.1375 x 100 = 13.75%
Example