21.19% is the change from 453 to 549
Calculation steps:
[( 549 - 453 ) ÷ 453] x 100 = 21.19%
Formula
Percentage change = [(549 - 453) / 453] x 100
Subtract the new number by the original number
549 - 453 = 96
96 ÷ 453 = 0.2119205298013245
0.2119205298013245 x 100 = 21.19%