40.25% is the change from 323 to 453
Calculation steps:
[( 453 - 323 ) ÷ 323] x 100 = 40.25%
Formula
Percentage change = [(453 - 323) / 323] x 100
Subtract the new number by the original number
453 - 323 = 130
130 ÷ 323 = 0.4024767801857585
0.4024767801857585 x 100 = 40.25%