Where the decision lands
Add an item
One row per part, service or function you could either make or buyFilters
Applied to every screen, the report and the CSVMake against buy, item by item
No items yet. Add one on the left, or load the sample from the Settings tab.
Headline figures
What it costs to make, a unit
Material, labour, machine and setup, grossed up for scrapAnnual difference between the options
Positive means making is cheaper; negative means buying isBreak-even volume against actual volume
The volume at which the two options cost the sameWhere the spend goes on the best option
Annual cost of the cheaper option, grouped by strategic valueMake against buy
Largest annual difference firstThe costs each side tries to hide
Scrap and setup on the make side, management and stock on the buy sideSettings
Currency, dates and the rules this tool appliesReport header
Appears on the printed reportYour data
Stays on this computerRecords and settings are stored in this browser only. Use Export .json for a backup you can archive or move to another machine, and Import .json to restore it. Reset asks twice, then erases everything.