Need help with creating a formula for percentages

Question

I am creating a fillable form for subcontractors to submit change requests. One of the sections on the form is for materials. Most subs will charge a markup which is a small percentage of the actual cost. Obviously, both amounts are variables. I want the subs to be able to enter the material cost in field 1, the markup percentage in field two, and then have field three calculate the dollar amount for them. Is this possible? Btw, I'm clueless on this, it's my first attempt at an adobe form. Thanks!!!

Answer 1

A more standard way is to use something like the following as the third field's custom Calculate script:
// Custom calculate script
(function () {
    // Get the field values, as numbers
    var v1 = +getField("price").value;
    var v2 = +getField("markup_percentage").value;
    // Calculate the value of this field
    event.value = v1 * (1 + v2 / 100);
This is assuming that a percentage of 20% is entered by the user as 20, as opposed to 0.2 or something else. Change the field values to match the actual fields in your form.
If the markup field is blank or zero, the total will simply be the same as the price value.