Now you do not want to be like "Gromush and Hellscreams. Cloth emporium" bit. Your not trying to get peoples attention on the fact you and your friend ARE working together. You want it to looked like your battling each other for gold.
On my realm Lesser Celestial Essence is selling at approximately 72-82 gp each. But Greater Celestials are selling for around 70 -75. Now you are making your money back plus A LOT more if you bust up the greaters and selling the lessers. But, they sell slowly..if your working alone. So to get started, you and your partner need to invest some money to buy 3 or 4 Greater Celestial Essence. Bust them up into lesser and split evenly.
Now that you and your friend have argued, and fought one another over a sale whoever get the customer now has a new job. Working them over. You want the customer feel like they mean something to you, (Other than a consumer). If you make them feel like you really just wanted the gold they feel unneeded. But if your polite, so some respect and hell, even offer another deal maybe 10% off entire order? Maybe throw in a buy 5 get 1 free? Either way your making your money back plus a decent profit. but do something to make the customer feel like !: They got the best deal around, and B: They actually matter. Thats going to do two things. 1: Make a returning Customer. 2: Make that customer brag on how good of a deal he got, and who gave it to him. For example. I am a alchemist on my main toon. I perform the Transmute Trugold for 250g a cooldown plus 200g per proc (Transmutation Master) Now if it doesnt proc Ill tell them something like "Well since i didn't proc make it 150g." I mean, its their mats and like 5 seconds of my time. Who is really losing anything there? But if it does proc, Ill tell them "ya know what, make it 125g for each extra bar." And on average I make 375g a for a 3x transmute PLUS the initial 200g for my 5 seconds of work.so right there was 575g and it took me 5seconds to make it, and I have returning customers. You have to be willing to compromise, make suggestion, and negotiate. But most of all be polite.
Thanks a lot you guys, Happy Gold making.