15.31% is the change from 320 to 369
Calculation steps:
[( 369 - 320 ) ÷ 320] x 100 = 15.31%
Formula
Percentage change = [(369 - 320) / 320] x 100
Subtract the new number by the original number
369 - 320 = 49
49 ÷ 320 = 0.153125
0.153125 x 100 = 15.31%