-16.72% is the change from 604 to 503
Calculation steps:
[( 503 - 604 ) ÷ 604] x 100 = -16.72%
Formula
Percentage change = [(503 - 604) / 604] x 100
Subtract the new number by the original number
503 - 604 = -101
-101 ÷ 604 = -0.1672185430463576
-0.1672185430463576 x 100 = -16.72%