-3.28% is the change from 457 to 442
Calculation steps:
[( 442 - 457 ) ÷ 457] x 100 = -3.28%
Formula
Percentage change = [(442 - 457) / 457] x 100
Subtract the new number by the original number
442 - 457 = -15
-15 ÷ 457 = -0.03282275711159737
-0.03282275711159737 x 100 = -3.28%