Newer customer asks for price break

I picked up this new customer around christmas .. he has a roots blowerGM 671 biss. and has one of the biggest names in the biss. I do a 3000 or a tad bigger banquet room i did it for 325 today he calls and says we need you again and can you give me a better price as we will be using alot more in the future . Its a 2 and a half hr. Job . I tell him wait till tommorow and let me think about it . Should i drop 25 bones off ? Rx20 all the way

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