9.33% is the change from 450 to 492
Calculation steps:
[( 492 - 450 ) ÷ 450] x 100 = 9.33%
Formula
Percentage change = [(492 - 450) / 450] x 100
Subtract the new number by the original number
492 - 450 = 42
42 ÷ 450 = 0.09333333333333334
0.09333333333333334 x 100 = 9.33%