Sales tax

T=PtimesrT=P\\times r

What it does

Calculates sales tax from the supplied values.

When to use it

Use this finance formula when the named quantities are known.

Variables

Worked example

{
  "inputs": {
    "rate": 0.1,
    "price": 100
  },
  "result": 10
}

Common mistakes

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