-10.38% is the change from 501 to 449
Calculation steps:
[( 449 - 501 ) ÷ 501] x 100 = -10.38%
Formula
Percentage change = [(449 - 501) / 501] x 100
Subtract the new number by the original number
449 - 501 = -52
-52 ÷ 501 = -0.10379241516966067
-0.10379241516966067 x 100 = -10.38%