Conditional Formatting or number field

Hello there,

I'm trying to change the format of text depending on a text field value

I don't know where is the wrong in my code!

it's not working

what I want is:

make the text red bold and italic if Actual_lodgning_1 >  lodging_per_diem_1

Thanks in advance

This is the code:

if(event.value>Number(this.getField("lodging_per_diem_1").value))
{event.target.textColor = color.red;}

else if(event.value < Number(this.getField("lodging_per_diem_1").value))
{
event.target.textColor = color.black
event.target.fillColor = color.transparent;}

Actual_lodgning_1