How many grams is $12 dollars of weed?

I know: Strange question? My question: Say you were my “dealer” or “seller”: And instead of asking for “10” or “15” sack of weed: I go in the middle and say “I’ll take $12 dollars of weed”?? Would that make any sort of impact or difference on what you would sell me? If asked for $12 instead of $10? Would I get like 0.2 grams more? Usually 1 gram is $10 bucks with most people I talk to. So say we’d call it 1.2 grams instead of 1 gram?

Like the question asks; I’m just asking you personally: How many grams of marijuana would usually sell with $12 dollars cash in your experience?