41.56% is the change from 320 to 453
Calculation steps:
[( 453 - 320 ) ÷ 320] x 100 = 41.56%
Formula
Percentage change = [(453 - 320) / 320] x 100
Subtract the new number by the original number
453 - 320 = 133
133 ÷ 320 = 0.415625
0.415625 x 100 = 41.56%