41.43% is the change from 321 to 454
Calculation steps:
[( 454 - 321 ) ÷ 321] x 100 = 41.43%
Formula
Percentage change = [(454 - 321) / 321] x 100
Subtract the new number by the original number
454 - 321 = 133
133 ÷ 321 = 0.4143302180685358
0.4143302180685358 x 100 = 41.43%