Decimal places with trailing zeroes simply do not work

https://www.jotform.com//?formID=70686396798177

Please take a look of the sibling discount field by selecting only 2 of the workshops. e.g.

This gives a very inconsistent look.  

In addition, it is almost impossible to align the number.  Is it possible to prefix each input box with "$".  I can edit it in after I download the form. However, I want to check with you first to see if there is a good way ensure there is a "$" there and at the same time align with the decimal places.  

I have tried both number and text field, with combination of the input mask. None with provide me, i.e.  

If I use text field, with or without the mask, or the currency field validation, etc.: 

if   condx ,  put   field1 / field2 into final_field  

where field1= 525 ,   field2= 10 . Then final_field will contain only $  52, not $  52.50 

If I use a number field, I cannot get it to dollar sign to display.

So, in the end, if I want : 

- e.g. 5001 / 10  .   If I want the decimal places to show up, I have to use Number field.  

- if I want "$" to show up, I have to use "Text" field.

- but cannot have both.

- SO ... my current solution is to use Number field.  Then, download the form and edit the "$" in front all input fields which need the $ sign. 

Am I right?

Please see an answer that my colleage provide you on this thread:

https://www.jotform.com/answers/1044125 

thank you