Quantity discount (price break) comparison
Best order quantity across up to three price breaks, counting purchase, ordering and holding cost.
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Comes with the product manager plan: every tool for the role, from $10.20 a month at the launch price.
- Your own numbers, worked out as often as you like
- The full price break sheet you can print or save to My work
- 3 cited sources, linked, with the checks to make
- Every other tool for the same role, in the same plan
- A plain-words read of your result (a fuller AI read with the Bifrost AI add-on)
Included in these role plans
Example result · fictional numbers
What you get: price break sheet
Worked out by this tool from its default inputs. Its role plan lets you run your own numbers, print the sheet and save it.
Buy break 3: 1,500 units at $9.10, $56,441.50 a year all in
- Break 1 at $10.00
- order 499, annual cost $61,571
- Break 2 at $9.50
- order 699, annual cost $58,460
- Break 3 at $9.10
- order 1,500, annual cost $56,442
- Best order quantity
- 1,500 units at $9.10
- Saving vs break 1
- $5,129
Can you take each break?
- Break 1: 1 unit or more at $10.00
- Yes: 499 units, 30 days of cover, $4,990.00 a PO
- Break 2: 500 units or more at $9.50
- Yes: 699 units, 43 days of cover, $6,640.50 a PO
- Break 3: 1,500 units or more at $9.10
- Yes: 1,500 units, 91 days of cover, $13,650.00 a PO
Also on the sheet
- Annual cost with a 22.0% carrying rate · 5 lines, starting with “Break 1 at 499 units”
- What to ask the vendor for · 3 lines, starting with “Break 2 pays below”
- Purchase order · 5 lines, starting with “Order quantity”
The plain-words read of this example
Within your shelf life, space and budget, break 3 is cheapest: 1,500 units at $9.10, $56,441.50 a year in purchase, ordering and holding. The comparison uses all-units pricing and a 22.0% carrying rate. That saves $5,129.44 a year against break 1. Every higher break already pays at its offered price, or never will at that quantity. Confirm freight terms and shelf life before you place the larger order.
3 cited sources
- ESD.273J Logistics and Supply Chain Management, lecture 2: inventory and EOQ models (MIT OpenCourseWare)
- How Many Parts to Make at Once (F. W. Harris, 1913, reprinted in Operations Research 38(6), 1990) (Operations Research (INFORMS), via IDEAS/RePEc)
- H.15 Selected Interest Rates (Board of Governors of the Federal Reserve System)
Plus 5 step-by-step checks, a print layout and a link that reopens it with your numbers.