# BT-149 — Item price base quantity

> https://billhorse.com/en/terms/bt-149/

The quantity the price refers to — e.g. price per 100 pieces instead of per piece. Defaults to 1 when absent; formula: BT-131 = BT-129 × BT-146 / BT-149 (± line allowances/charges).

## Where does it live in the XML?

- UBL: `cac:InvoiceLine/cac:Price/cbc:BaseQuantity`
- CII: `ram:NetPriceProductTradePrice/ram:BasisQuantity`