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SQC Calculations

Last updated: 26th August 2026

Before a food product is included in the SQC calculation, it must first be successfully published. This means it has passed our essential validation checks, including:

  • Nutrition and allergen data validation.
  • Completion of all required fields (e.g., product code, ingredient list, food name, energy value).

Only products that meet these criteria are counted in your SQAC’s Total Food Count

First, we grade eligible product data against a list of rules, each with a different weight.

Pass Rate: We find the percentage of a Supplier’s products that pass a specific rule.

Example: The Product Age > 1 Year rule checks if data has been republished within the last year. If 40 out of 53 foods are valid, the pass rate is (40 / 53) * 100 = 75.47%.

Weighted Score: We multiply this pass rate by the rule’s assigned weight.

Example: The rule has a weight of 10. The base score is 75.47 * 10 = 754.7.

This is done for every rule, creating a set of Base Scores.

Once Base Scores have been established, Penalties can then be applied to encourage timely data fixes.

These penalties are only applied after a Grace Period has passed without outstanding issues being addressed (i.e. the Base Score for a given rule has not improved). This Grace Period is Supplier-specific. (e.g. 10 days for Supplier 1 & 30 days for Supplier 2) 

Daily Penalty: Penalties grow by a fixed percentage for each day an issue is outstanding after the grace period (e.g. 0.5% – this applies across all rules equally, but is adjustable on a system-wide basis) 

Penalty Cap: Penalties are capped at a maximum percentage, calculated based on the rule’s weight relative to all other rules.

Example: The Specification Sheets Missing rule has a weight of 15 and accounts for 29.4% of the overall score weight. If the