Finance - Ability to record discounts on purchases

Current Features

Currently, reimbursement requests are broken down by line item, with the price for each item purchased recorded. The total is determined by the sum of the parts purchased. If an entire order was purchased at a discount, the only way to record this is to drop the price of a single item, which messes up record keeping.

Desired Additional Features

We want to add the ability to record a general discount on an order.

This will involve adding a discount field to the reimbursement requests form, then modifying the reimbursement requests endpoint to allow for the discount value to be passed to the backend. The discount field should accept a dollar amount.

Start by locating the reimbursement requests form and the reimbursement requests endpoint, then trace how line-item prices are currently collected and sent. The work is done when the form accepts a dollar-value general discount and the endpoint passes that discount to the backend for an order.