Bioplastics & Biomaterials Processing worked example

Bio-Based Content Percentage at 50% target bio-based content: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop target bio-based content to 50%, then walk the calculation through step by step. Calculate bio-based content from renewable carbon or bio-based material weight against total formulation weight, with a target content requirement.

The inputs for this scenario

Bio-based material weight: 720 kg or lb (held at the documented default)
Total formulation weight: 1,000 kg or lb (held at the documented default)
Target bio-based content: 50 % (the input this scenario stresses; the baseline uses 70)

Working through the calculation

The calculation starts from the formula this tool documents: Bio-based content = bio-based material weight ÷ total formulation weight × 100.
Bio-based content works out to 72 % bio-based content at these inputs, and this is the headline figure for the scenario.
Bio-based content gap to target works out to -22 points at these inputs.
Bio-based material weight works out to 720 kg or lb at these inputs.
Total formulation weight works out to 1,000 kg or lb at these inputs.

How this compares with the baseline

Against the tool's baseline example, where target bio-based content sits at 70% and the headline result is 72 % bio-based content, this scenario lands almost exactly on the baseline at 72 % bio-based content.
The practical read: the gap between this scenario and the baseline is entirely attributable to target bio-based content, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. This is a mass-balance estimate from formulation inputs; it is not a substitute for ASTM D6866 carbon-14 testing, which measures bio-based carbon and can differ if fillers or additives contain hidden fossil or mineral carbon.

Results at a glance

Bio-based content: 72 % bio-based content (headline result)
Bio-based content gap to target: -22 points
Bio-based material weight: 720 kg or lb
Total formulation weight: 1,000 kg or lb

Run it with your numbers

To rerun this with your own numbers, open the live Bio-Based Content Percentage calculator, set target bio-based content to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.