How do I round up/down calculated fields in Acrobat Pro DC?

I need Javascript for rounding solutions in two calculated fields in an Acrobat Pro DC form (I am almost totally unsavvy about Javascript, well, actually, totally.):

I need to round UP to the next whole number the results in one calculated field whose basic calculation is this:

(*THIS CALCS HOW MANY DAYS A JOB WILL TAKE)

// Get first field value, as a number

var v1 = +getField("qty").value;

// Get second field value, as a number

var v2 = +getField("wordsperday").value;

// Calculate and set this field's value to the result

event.value = v1 * v2;

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I need to round DOWN to the next whole number the results in one calculated field whose basic calculation is this:

(THIS CALCS HOW MUCH A JOB WILL COST)

// Get first field value, as a number

var v3 = +getField("qty").value;

// Get second field value, as a number

var v4 = +getField("rate").value;

// Calculate and set this field's value to the result

event.value = v4 * v3;

I have tried a few copy-and-paste scripts from the web; they did not work, and my efforts to tweak them into working also failed.

I will be eternally grateful for any help I receive.

Thanks,

Paul

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