18.4% is the change from 451 to 534
Calculation steps:
[( 534 - 451 ) ÷ 451] x 100 = 18.4%
Formula
Percentage change = [(534 - 451) / 451] x 100
Subtract the new number by the original number
534 - 451 = 83
83 ÷ 451 = 0.18403547671840353
0.18403547671840353 x 100 = 18.4%