Allow "use current properties as default" to include or delete decimal places.
When selecting a form field and want to use it for the default, it doesn't allow for the existing decimal place. So, I have to go back and change every number field to eliminate the two decimal default. Also, why can't we just have the default be without any decimals?
After you have created a form field that eliminate the two decimal default, select “Create Multiple Copies” available on “Right Click” to add more form field with the same default formats.
I hope this helps
You can read more at https://helpx.adobe.com/acrobat/using/pdf-form-field-basics.html#copy_a_form_field