-7.69% is the change from 494 to 456
Calculation steps:
[( 456 - 494 ) ÷ 494] x 100 = -7.69%
Formula
Percentage change = [(456 - 494) / 494] x 100
Subtract the new number by the original number
456 - 494 = -38
-38 ÷ 494 = -0.07692307692307693
-0.07692307692307693 x 100 = -7.69%