I price different flowers a different mark up. But it averages out to about 5x mark up. Greens the same thing- Unless they are very long lasting greens, like lily grass or isralie that I buy by the case and it lasts forever. Then just 2.5x.
Hard goods 2.5 minimum mark up.
The labor is included in the price.
Now- I have been doing something differently as far as marking up weddings.
For instance- My 10-10-10 wedding was small and easy and cheap. My bride and groom had a tight budget. They gave me thier initial budget- $400, for just bouquets and corsages and bouts. Then I asked about cake flowers and centerpeices. They said they were just going to go to Costco and get flowers and put them in vases from the dollar store. I asked how much were they going to spend at Costco...They said they were figuring about $200. I said well if I can do it (16 centerpeices) for $200 and they provide the vases would they be up for it? They said sure. Sweet. They didn't care about the type of flowers, just the color.
Except for the bridal bouquet- That had to be hot princess roses and steph. OK.
Well I ended up getting somewhere around $700 or $800 for the whole wedding, but I didn't charge as much for labor. The wedding had 16 bouts, 5 corsages, 16 centerpeices, 8 bouquets and a cake topper. I ended up using mostly alstroe and tree fern. And they loved it. I would have normally charged about $25 for the centerpeices and at least $10.50 each on the bouts. $25 for the corsages, etc...
I also offered to deliver for free rather than them pick up. Why? Well- I'm building my rep here in ABQ and I need pics of weddings in actual venues here in ABQ. Most of my pics are of wedding up in Durango. I would rather deliver it and get the pics I want than have them pic up and I get nothing. I only spent $158 on product, So the wedding did make us some money- Just not as much as usual.
But It only took me 3 hours to do the whole thing. I did it so fast that I feel we totally made money.
Now-if the wedding is more complicated and would have taken a long time to make we wouldn't have made any money OR I would have had to charge a lot more.
So I guess what I'm saying is it all depends.