Calculate based on the value of another field and leave blank if other field is blank

[CMunro87]

I am looking for some help with form field calculations .

 1. I need to multiply "TGAI" * 0.03 , but if  "MedicalExpenses" is empty then leave return the value of "0". 

•  this field, when calculated needs to return a negative value 

2. If  "HPW" AND "WPY" are blank then leave cell blank if "HPW" AND "WPY" have values then multiply "HW" * "HPY"

Thank you for any help you can provide. 

[PDF Automation Station]

1. 

if(!this.getField("MedicalExpense").value)

{event.value=0}

else

{event.value=this.getField("TGAI").value * .03 * -1}

2.

if(this.getField("HPW").value && this.getField("WPY").value)

{event.value=this.getField("HPW").value * this.getField("WPY").value}

else

{event.value=""}

[CMunro87]

Good morning and thank you for your response . the script provided for #1 does not work , but #2 does . 

[PDF Automation Station]

What result are you getting.  Do you have errors in the console?

[CMunro87]

Thats the odd thing, im not getting any error messages , its just not calculating . 

[PDF Automation Station]

Can you upload your document?

[CMunro87]

Yes , it may look a little off as i had to scrub some of the information from the document . I left notes on the bottom in regard to the issue . 

[PDF Automation Station · Accepted solution]

A couple of issues:

1)  You had a validation script AND a calculation script in the field.  Remove the validation script.

2)  You missed the ! in my script, which changes the statement to a value vs no value.  Here's the calculation script again (copy and paste it).

if(!this.getField("MedicalDeduction").value)
{event.value=0}
else
{event.value=this.getField("Calc_TotalGAI").value * .03 * -1}

[CMunro87]

That worked , thank you so much , now i just have one more issue on this form and im done with it . 

 if you dont mind taking a look when you get a chance i would really appriciate it .

I have left notes on the form and included the entire worksheet this time for your reference . 

Again , thank you for your time 

[PDF Automation Station · Accepted solution]

if(!this.getField("GMI.0").value)
{event.value=25}
else
{event.value=this.getField("Calc_TotalMonthlyPayment").value-this.getField("Utilities").value}

[CMunro87]

Thank you so much for your help !