-10.74% is the change from 503 to 449
Calculation steps:
[( 449 - 503 ) ÷ 503] x 100 = -10.74%
Formula
Percentage change = [(449 - 503) / 503] x 100
Subtract the new number by the original number
449 - 503 = -54
-54 ÷ 503 = -0.1073558648111332
-0.1073558648111332 x 100 = -10.74%