9.58% is the change from 449 to 492
Calculation steps:
[( 492 - 449 ) ÷ 449] x 100 = 9.58%
Formula
Percentage change = [(492 - 449) / 449] x 100
Subtract the new number by the original number
492 - 449 = 43
43 ÷ 449 = 0.0957683741648107
0.0957683741648107 x 100 = 9.58%