Process Manufacturing worked example

Chemical Cost Per Batch with sellable batch size of 30,000 lb: a worked example

Push sellable batch size up to 30,000 lb and the picture changes. This example computes every intermediate figure at that operating point. costing a chemical batch before release, quote, or production planning review

The inputs for this scenario

  • Sellable batch size: 30,000 lb (raised for this scenario; the documented default is 12,000)
  • Variable chemical cost: 1.85 $ / lb (unchanged)
  • Batch labor and setup cost: 950 $ (unchanged)
  • QC, utility, and overhead adders: 1,400 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Total batch cost = sellable batch size × variable chemical cost + labor and setup + overhead adders) to the inputs above produces each figure below.
  • At this operating point the engine returns 57,850 $ for total chemical batch cost, the number this scenario is built around.
  • At this operating point the engine returns 1.93 $ / lb for chemical cost per sellable unit.
  • At this operating point the engine returns 55,500 $ for variable material cost.
  • At this operating point the engine returns 2,350 $ for labor, qc, and overhead adders.

How this compares with the baseline

  • Against the tool's baseline example, where sellable batch size sits at 12,000 lb and the headline result is 24,550 $, this scenario comes in 136% above the baseline at 57,850 $.
  • It sums variable material cost, labor and setup, and overhead adders into a total batch cost, then divides by sellable batch size for cost per unit. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • total chemical batch cost: 57,850 $ (headline result)
  • chemical cost per sellable unit: 1.93 $ / lb
  • variable material cost: 55,500 $
  • labor, QC, and overhead adders: 2,350 $

Run it with your numbers

  • Every input above is editable in the live Chemical Cost Per Batch calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.