Bioplastics & Biomaterials Processing worked example

Compostable Packaging Cost at 110% packaging cost allocation share: a worked example

What does the result look like when packaging cost allocation share reaches 110%? The full calculation is worked below with real intermediate numbers. a packaging converter or brand needs to estimate compostable packaging cost for a production run, SKU, or customer quote

The inputs for this scenario

  • Compostable packages in run: 120,000 packages (unchanged)
  • Compostable package cost: 0.08 $ / package (unchanged)
  • Packaging cost allocation share: 110 % (raised for this scenario; the documented default is 100)
  • Fixed compostable packaging program cost: 3,200 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Allocated variable packaging cost = compostable packages in run × compostable package cost × packaging cost allocation share) to the inputs above produces each figure below.
  • At this operating point the engine returns 14,288 $ for total compostable packaging cost, the number this scenario is built around.
  • At this operating point the engine returns 0.12 $ / package for compostable package cost.
  • At this operating point the engine returns 11,088 $ for allocated variable packaging cost.
  • At this operating point the engine returns 3,200 $ for fixed compostable packaging program cost.

How this compares with the baseline

  • Against the tool's baseline example, where packaging cost allocation share sits at 100% and the headline result is 13,280 $, this scenario comes in 7.59% above the baseline at 14,288 $.
  • A figure at this level is achievable when packaging cost allocation share is genuinely sustained, not just peaked for a shift. It assumes one blended per-package price and a flat fixed cost, so it won't reflect tiered supplier pricing, yield loss on the line, or end-of-life disposal credits unless you adjust the inputs.

Results at a glance

  • Total compostable packaging cost: 14,288 $ (headline result)
  • Compostable package cost: 0.12 $ / package
  • Allocated variable packaging cost: 11,088 $
  • Fixed compostable packaging program cost: 3,200 $

Run it with your numbers

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

Last reviewed 2026-05-12.