# SUMIFS

Hello!

I am trying to create a formula however wonder if it is too complicated. I am trying to use it to keep a running total of inventory. I have a sheet that will contain the 'Quantity Available' and another sheet that has the parts. The formula I am trying to create is to pick up the count from the other sheet that has a running total of Quantity In + Quantity Out which gives the total amount available however I am trying to get it to pick up when the Product Type only says 1/4" O-Rings for example.

I have tried doing the formula a couple of different ways and it isn't working.

Need the formula to show something along the lines of =SUMIFS(Quantity In+Quantity Out, Product Type = 1/4" O-Rings). This would mean the quantity available is only relevant to the O-Rings of that size however it has a running balance so as more O-Rings come in and out the quantity available in the other sheet will always continue to update.

For reference I have included an example. Sheet 1 would contain the running balance and Sheet 2 would contain the information.

E.g I need to be about to get the quantity available in sheet 1 to show 2 (3 in and 1 out for only the 1/4" O-Rings).

Would love to know if this is even possible! If so, please send through ideas as to how the formula would make it work.