-1.75% is the change from 457 to 449
Calculation steps:
[( 449 - 457 ) ÷ 457] x 100 = -1.75%
Formula
Percentage change = [(449 - 457) / 457] x 100
Subtract the new number by the original number
449 - 457 = -8
-8 ÷ 457 = -0.0175054704595186
-0.0175054704595186 x 100 = -1.75%