Welcome to the forum, we're glad to have you aboard.
Regarding your deck and what you should sell it for at wholesale... Well, that's up to you, really. It's not the kind of thing you should be discussing openly on a forum, at the very least. Try contacting other artists, privately, and ask them - especially deck artists you may already have a relationship with. Some will not want to discuss it with you, but some might be more open and willing to offer you some advice.
What I can tell you is that some decks are never offered at wholesale at all. The artists might be concerned about people undercutting their own suggested retail price (SRP) - I've seen it happen. I know of a few artists that started off offering wholesale but later stopped completely, insisting that retailers pay full price, because they were being undersold - and the retailers, having been forced to buy at retail if they wanted to sell those decks, then rose their offering prices, which in turn raised the market value of the deck once it was no longer available from the artists at their SRP. You can't insist they sell you deck at any given price - it's prohibited by law in the US - you can only suggest what it should be sold for.
What it's going to boil down to is this: look at what's being offered for how many decks and what it cost you to produce that many decks. You have to decide for yourself, "Is it worth it to me to accept this offer? Will I be losing money? Will I not be making what I think my work is worth, once I've added up the amount offered and subtracted all of my costs? Is it better to sell all these decks at a discount for a tidy lump sum right away or to hang on to them, selling some here and some there, but getting more money for them in the long run?" There may be other factors at play - for example, if you had a debt or major expense that you needed to deal with right away (for example, you might require seed money for starting your next deck project if your artist insisted on being paid up front), it's possible that you need that lump sum and can't wait for the larger payoff that will come in a longer period of time (and which is never guaranteed - no one says the market has to buy all of your decks)! You might instead decide that your work is worth more to you so it should be worth more to anyone buying your decks, or you might not be under any real time pressure to sell out your stock quickly and can afford to take your time with it and get either full retail or something closer to it.
What is a given deck worth? It's worth exactly what someone is willing to pay for it, period - no more, no less. You have to keep in mind that, when selling at wholesale, you have to give the retailer a decent-enough margin of profit to make it worth their while to bother with stocking your product while at the same time not cutting your price so deeply that you undercut what it's really worth to you and what profit you need to make on it as well.
I would seriously recommend that you find someone, a friend, to help you negotiate your sale. It's a sad and unfortunate fact, but in this country and many others (and I'm assuming you're trying to sell it in the US, or at least somewhere in the Western world), if you're not a good communicator in the buyer's language, some people will look at you as a "rube" and will try to take advantage of you or will not consider you seriously in negotiations. It's pretty clear from your post that English is not your native language - and I'm not knocking you for that; not everyone grows up in the English-speaking world and there's hundreds of languages out there. But when dealing with someone you're trying to sell to, it's best to deal with them using someone to represent you who knows their language, preferably a native speaker who will understand the subtleties of communication and might perceive if your buyer is trying to take advantage of you. If that person has sales experience, all the better.
Good luck to you in your endeavor!