-4.56% is the change from 439 to 419
Calculation steps:
[( 419 - 439 ) ÷ 439] x 100 = -4.56%
Formula
Percentage change = [(419 - 439) / 439] x 100
Subtract the new number by the original number
419 - 439 = -20
-20 ÷ 439 = -0.04555808656036447
-0.04555808656036447 x 100 = -4.56%