Excel to JavaScript

[alexking16]

Hi! I need to convert the following excel formula to Javascript for my PDF, I've studied basic syntax a bit, but cant seem to figure it out. 

The excel formula is:

=IF(A15=1,B15*0.75,(A15-0.5)*B15)

However, in the PDF,  A15 will be Days1 and B15 will be MIE1 . 

Please Help

[George_Johnson · Accepted solution]

The custom calculate script for the field could be:

(function () {

    // Get the values from the input fields, as numbers
    var nDays1 = +getField("Days1").value;
    var nMIE1 = +getField("MIE1").value;

    // Calculate and set this field's value
    event.value = nDays1 == 1 ? 0.75 * nMIE1 : (nDays1 - 0.5) * nMIE1;

})();

That last line is equivalent to:

    if (nDays == 1) {
        event.value = 0.75 * nMIE1;
    } else {
        event.value = (nDays1 - 0.5) * nMIE1;
    }