Inventory Tracker DAX

Hi, 

I am currently creating an inventory tracker which tracks items moving in or out of a unit. I have created the core functionality of the report. However, I have 300+ items that I need to make individual measures for. The measure so far looks like this:

Assuming the item has a base count of 1000:

Item = 1000 + CALCULATE(SUM('Inventory'[Quantity]), FILTER('Inventory', 'Inventory'[Material_In_True] = TRUE() && 'Inventory[Component] = "Item")) - CALCULATE(SUM('Inventory'[Quantity]), FILTER('Inventory', 'Inventory'[Material_In_True] = FALSE() && 'Inventory[Component] = "Item"))

 Essentially, I take the base value and plus and minus any entries of that component that is fed through a SharePoint list.

I am currently pulling my hair out creating a measure for every individual component. Furthermore, I will be calculating the weight of each component so I will be creating a measure for each individual items weight * quantity to get the total weight. I will be left with 600+ measures in this report.

Any help with a time saving solution will be appreciated.