-17% is the change from 606 to 503
Calculation steps:
[( 503 - 606 ) ÷ 606] x 100 = -17%
Formula
Percentage change = [(503 - 606) / 606] x 100
Subtract the new number by the original number
503 - 606 = -103
-103 ÷ 606 = -0.16996699669966997
-0.16996699669966997 x 100 = -17%