**zyrahfilms**I want to a price field where when you enter the price it will calucalte on another fields 20% of that price and another field calculates the remaining cost from the total misus the 20%. cna this be done with the fields and is there a html coding? would it be called something else?

- JotForm Support
**Welvin**Hi,

We have the calculation feature, kindly check this guide: How to perform calculation in the form?. However, we only support a few fields with numeric values.

The formula should be easy, you can find the steps from the guide provided. So based on your preference, the calculation formula would be:

[{pricefield} * 0.20}] - number input to the field multiplied by 20%

Let us know if you need further assistance.

Thanks