Bernie,
The car is agreed.
The dividend has a time value so it is less at Buy time.
Personally I would increase CASH with 472, but leave Cost Basis at 2600.
If you take the money out of the machine you could decrease CASH with 472 and Cost Basis with 472. In the perfect world one should adjust Cost Basis with some formula equivalent to the discounting value of the dividend at Buy Time.
I stop here, not being an accountant, K