# Costs - Rateline 1.x documentation

> A rule's cost is a base amount plus optional amounts per item, per weight unit and a percentage of the subtotal.

When a rule matches, its rate is:

> **Cost** + **Per item** × number of items + **Per lb** (or kg) × weight + **% of subtotal** × subtotal

Fill in only what you need; empty counts as 0. The weight column is named after your store's weight unit.

## Examples

| Cost | Per item | Per lb | % of subtotal | 3 items, 8 lbs, $120 | |
|---|---|---|---|---|---|
| 6.95 | | | | $6.95 | A flat price for the band |
| 5 | 1.50 | | | 5 + 3 × 1.50 = $9.50 | A base plus a price per item |
| 9.95 | | 0.50 | | 9.95 + 8 × 0.50 = $13.95 | A base plus a price per lb |
| | | | 8 | 8% of 120 = $9.60 | A share of the order's value |
| 4 | | | 5 | 4 + 6 = $10.00 | A base plus a share |

The number of items, weight and subtotal are the same ones the conditions use: the whole order, counting only items that need shipping.

## Free shipping

A cost of **0** (with nothing else filled in) makes shipping free. Give the rule a **Label** such as "Free shipping" so customers see why. See **Free, labelled and no-shipping rules**.

## Decimals and currency

Enter amounts in your store's currency, without the symbol. Decimals can use a point or a comma; Rateline saves them with a point. Rates are rounded to your store's number of decimals at checkout.

## Taxes

The method's **Tax status** decides whether its rates are taxed, like WooCommerce's own methods. Enter costs without tax: WooCommerce adds the tax for the customer's address when the method is taxable.

Source: https://www.extendiment.com/plugins/rateline/docs/1.x/costs