No. You are not allowed to deduct the value of your time or services as a charitable contribution. If you had business expenses related to the service provided (supplies, as an example), then those expenses are deducted as a normal business expense. You receive the tax benefit of your donation by not having that $200 reported as income for your business but you are still claiming the associated expense.
To learn more, take a look at the IRS Publication 526 Charitable Contributions. Go to the section titled Contributions You Can't Deduct.
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