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Subtracting table values

I have built a data base to track my investment savings which I update monthly. When I add the newest value is it possible to subtract the previous value to calculate the variation? Ie last ID (1400) - last ID-1(1200) = 200

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    • Kim_Schacht
    • 4 yrs ago
    • Reported - view

    This would help you:   600.03 - Chaining Records. On youtube

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Content aside

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