You are looking at this wrong.
Your actual expenses are prorated across all of the mileage that you drive. You are entitled to deduct the business use percentage of your actual expenses. For a vehicle that is driven 100% of the time for business that is 100% of the expenses.
In the two instances that you mention that is 58% and 62.6%. When you take that percentage of the actual expenses then the standard mileage rate is much better.
@egpowers
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