Discount amount

D=LPtimesrD=LP\\times r

What it does

Calculates discount amount from the supplied values.

When to use it

Use this finance formula when the named quantities are known.

Variables

Worked example

{
  "inputs": {
    "rate": 0.25,
    "listPrice": 80
  },
  "result": 20
}

Common mistakes

Check units, signs, brackets and that every value is entered in the stated units.