Final answer:
Werner can deduct 50% of the meal expense, which is $610, for the business-related dinner with the prospective client according to IRS rules. The football game expenses are non-deductible as no business was discussed.
Step-by-step explanation:
The deductible amount for Werner's business entertainment expenses related to the dinner and football game can be determined based on the Internal Revenue Service (IRS) regulations. Generally, the IRS allows a deduction for 50% of business-related meal and entertainment expenses that are not lavish or extravagant, and are incurred directly before or after a substantial business discussion.
In this case, Werner's dinner with the prospective client involved business discussions, making the $1,220 meal expense partly deductible. Thus, the deductible portion of the dinner would be $610 (50% of $1,220). However, the tickets to the football game, where no business was discussed, would typically not qualify for a deduction. It's important to check the latest tax laws or consult with a tax professional, as these laws can change, and specifics can vary based on the situation.