-16.7% is the change from 503 to 419
Calculation steps:
[( 419 - 503 ) ÷ 503] x 100 = -16.7%
Formula
Percentage change = [(419 - 503) / 503] x 100
Subtract the new number by the original number
419 - 503 = -84
-84 ÷ 503 = -0.16699801192842942
-0.16699801192842942 x 100 = -16.7%