Rounding Up

One would have to use the JavaScript "Math.round()" method that rounds to the nearest integer. So to round to the nearest thousand, one needs to shift the decimal place, round and restore the original decimal location.

var quantity = 63250;
var price = 2;
var result = quantity * price;
console.show();
console.println("Extended value: " + result);
result = result / 1000; // shift decimal by 1000
console.println("Shifted value: " + result);
result = Math.round(result); // round to nearest integer
console.println("Rounded to integer value: " + result);
result = result * 1000; // restore decimal to original location
console.println("Restored value: " + result);

A more generalized solution using functions and being able to specify the input value and the decimal unit one wants the result rounded to:

The following functions can be placed as a document level function or folder function:

function Round(sInput) {
// return input as integer from round inputted number formatted to 3 decimals
var fNumber = Number(sInput); // force to number
var sNumber3 = util.printf('%0 .3f', fNumber); // force to 3 rounded decimal place string
var fNumber3 = Number(sNumber3); // force back to number
return Math.round(fNumber3); // round to whole number
} // end Round

function RoundNearest(sInput, sDecimal) {
/*
Round to nearest decimal value
Math.round - rounds to nearest whole number
Multiply input to 1/Decimal to obtain number of Decimals
Round converted input to whole number
Multiply by Decimal to return to nearest whole decimal value
*/
var fInput = Number(sInput); // convert to number
var fDecimal = Number(sDecimal); // convert number
if (fDecimal == 0) { // test for divide by zero
app.alert('sDecimal must be a number! ' + sDecimal, 0, 1);
return ''; // force exit
}
var fNumber = fInput / fDecimal; // convert to units of sDecimal for rounding
var fRound = Round(fNumber); // round to whole numbers
return (fRound * fDecimal); // return in whole decimal units
} // end function RoundNearest


The event's Custom calculation script becomes:

event.value = RoundNearest(this.getField('Input').value, 1000)