oaks/wdfrd/derby P3. How can that be?

[Jackson]

May 4 3:46 PM Derby Pick 3 1 $0.50
P3 (PWHL) 2, 4, 6, 8 / 5, 8, 9 / 16 $417.30 *

I was paid this. So if the $2 oaks woodford derby paid 1044.40
So a $ .50 wager paid 261.10 and the 5 and 9 were scratched in the second leg, so I'm not sure how the 156.20 difference comes into play so some consolation had to be paid, or else i should have seen 783.30 if the scratches moved to the post time favorite.