automatically restart formulas when col reaches positve

Hello,
I am trying to develop a project and hope someone can provide some assistance please.
Basically I would like to know if there is a way automatically to have a set of formulas and calculations stop when a positive number is reached in column H and then the whole procedure commenced again from the start.
Amounts are entered and with my calculations they are updated,sometimes adding,sometimes subtracting from the column. Once it goes to >0 I place that amount in a separate column and then start the process all over again.
I have included my worksheet.
Thank you.

Hello,
Thank you for response.Starting again means to start the process again from Row 2.

Hello,
As I said Row 2 this is the starting point followed by row 3 and the formulas continue to follow as shown in the columns G,H,I ,and J