-4.38% is the change from 457 to 437
Calculation steps:
[( 437 - 457 ) ÷ 457] x 100 = -4.38%
Formula
Percentage change = [(437 - 457) / 457] x 100
Subtract the new number by the original number
437 - 457 = -20
-20 ÷ 457 = -0.0437636761487965
-0.0437636761487965 x 100 = -4.38%