Source: Schema.org v30.1 vocabulary. Official weightPercentage property definition.
What does weightPercentage mean?
Value representing the fraction of the weight that is used to compute the shipping price. Example: 0.10 and a shipping weight of 15kg would add $1.5 to the order price, where the $ is the currency of the order.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status