Help, simple MASM615 program

Hi all, I'm a newbie in Assembly Language Program. I've tried on this program but mine cannot run at all .... Below shows the question and I've attached my answer (tsk2.txt), hope to get the guideline and teaching from u guys...thx

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A salesperson for a used cars company is compensated using a commission system. Construct a simple commission system in Assembly Language. The commission is computed based on the selling price for the vehicle.

Commission = commission rate X sales price

The screen will allow the user to enter salesperson's name, joined date, the selling price of the vehicle and the cost value of the vehicle. Use a constant of 5 percents for the commission rate for those salesperson who services the company for less than or equal 5 years and 10 percents for others.
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Hope to get the answer soon, thanks to all professionals ^^