Flowers stress me out...

I need help please!

With my package at the Miller Place Inn I get my floral centerpieces through Margaret Flowers in Miller Place (http://www.margaretsflorist.com/). I'm going to try and set up an appointment with them soon to pick out the centerpieces but see if they'll give us a discount for getting our bouquets there as well.. Here's my problem, I don't know what a discount would be!

I'm totally clueless when it comes to prices with flowers - they're honestly not my thing!

How much should bouquets go for?

Any suggestions would help please =)

I'm using Flowers by Brian.

My boK is $225 and BMs are $95 each. I think their prices might run higher than some other places, but Crest Hollow requires you to use their 'house' florist and they were the cheapest.

My centerpieces - see album - are $150 each.

Dont they give a discount since that is their vendors?
I was told when i went to Ariana, If i needed anything additional/extra (BoK, Invitations, Favors) their vendors will give me X% off....