48.75% is the change from 320 to 476
Calculation steps:
[( 476 - 320 ) ÷ 320] x 100 = 48.75%
Formula
Percentage change = [(476 - 320) / 320] x 100
Subtract the new number by the original number
476 - 320 = 156
156 ÷ 320 = 0.4875
0.4875 x 100 = 48.75%