Subtract from one cell until it reaches "0" before moving on to another cell

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[TABLE="class: grid, width: 500"]
<tbody>[TR]
[TD="align: center"][/TD]
[TD="align: center"]I[/TD]
[TD="align: center"]J[/TD]
[TD="align: center"]K[/TD]
[TD="align: center"]L[/TD]
[TD="align: center"]M[/TD]
[/TR]
[TR]
[TD="align: center"]1[/TD]
[TD="align: center"]100[/TD]
[TD="align: center"]200[/TD]
[TD="align: center"]0[/TD]
[TD="align: center"]175[/TD]
[TD="align: center"]125[/TD]
[/TR]
[TR]
[TD="align: center"]2[/TD]
[TD="align: center"]0[/TD]
[TD="align: center"]125[/TD]
[TD="align: center"]0[/TD]
[TD="align: center"]175[/TD]
[TD="align: center"]125[/TD]
[/TR]
</tbody>[/TABLE]

ROW ONE: When entering a value in L1, I would like the amount to deduct from I1 until it reaches zero before deducting from J1. M1 is the balance for the row

ROW TWO: Is how it should look if the formula is correct.

 

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YES - I figured it out on my own. How do I mark this thread SOLVED?