-10.93% is the change from 503 to 448
Calculation steps:
[( 448 - 503 ) ÷ 503] x 100 = -10.93%
Formula
Percentage change = [(448 - 503) / 503] x 100
Subtract the new number by the original number
448 - 503 = -55
-55 ÷ 503 = -0.10934393638170974
-0.10934393638170974 x 100 = -10.93%