I'm not an expert but I think you may be able to do better. Here are my calculations:
3 adult & 1 child - 6 night/7 day UPH $1260.45 (3 x 331.81 & 1 x 265.02)
$2752 - 1260.45 = 1491.55/6nights ($248.60/night)
You should be able to get a better rate than that with the codes on mousesavers ($199/standard room).
Good luck.