For the mileage database, a small display bug was pointed out. To rectify it, I need to calculate the MPG for the tanks that are logged. It's late and my brain is fried. Can anyone else figure out the equation?

Known: Lifetime MPG, Lifetime Miles, Starting MPG, Starting Miles, Tank Miles
Need: Tank MPG

This may be really easy, but at 1:45 after all I've been doing on this thing... can't think! Thanks.

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