-2.78% is the change from 503 to 489
Calculation steps:
[( 489 - 503 ) ÷ 503] x 100 = -2.78%
Formula
Percentage change = [(489 - 503) / 503] x 100
Subtract the new number by the original number
489 - 503 = -14
-14 ÷ 503 = -0.027833001988071572
-0.027833001988071572 x 100 = -2.78%