I have to calculate the contribution maargin. Calculate the monthly break-even units for each antique, prepare a contribution margin income statement. Distributors wants 15% on all antiques

There's a lot there and it's very vague. I'm not really quite sure what you're doing or what you're question is.

Contribution margin is sales less variable costs. (Which can either be done in units or in total.)

Break even is fixed costs divided by unit contribution margin.

But what you're asking is pretty vague and I'm not sure what exactly you are doing. Also make sure you check in with our guidelines on posting homework problems:
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