8.1% is the change from 457 to 494
Calculation steps:
[( 494 - 457 ) ÷ 457] x 100 = 8.1%
Formula
Percentage change = [(494 - 457) / 457] x 100
Subtract the new number by the original number
494 - 457 = 37
37 ÷ 457 = 0.08096280087527352
0.08096280087527352 x 100 = 8.1%