record_purchase: Write purchase entries in the ledger.
In NicolasJBM/simulR: Toolbox for Business Simulation

Write purchase entries in the ledger.

record_purchase(
  date = Sys.Date(),
  object = "units",
  quantity = 100,
  price = 10,
  discount = 0.05,
  vat = 0.2,
  dpo = 45,
  risk = 0.1,
  duration = 1,
  origin = 21000,
  destination = 13300
)

`date`	Date. date of the sale.
`object`	Character. Name of the product or service sold.
`quantity`	Integer. Volume sold.
`price`	Double. Base price of the product or service.
`discount`	Double. Percentage of price reduction earned if payment within terms.
`vat`	Double. Percentage of price to compute value added taxes.
`dpo`	Integer. Day-Payable-Outstading or customer credit.
`risk`	Double. Probability of not paying on time.
`duration`	Integer. For how many periods does the right hold.
`origin`	Character. From where the purchase is made.
`destination`	Character. Where the purchase goes.