How do i make Form Calculation Widget result read only

I have make use of the form calculation widget in my form below,

https://form.jotform.me/kentzo/bobaicecream5

2 of the field: Total Order Qty and Total Amount $ are form calculation widget.

However they are subjected to user manipulation. How do i go about this problem? I want them to be read only field.

You can follow the steps below to set the calculation widget to read-only mode:

1.Select the calculation field and then click the wand icon.

2. Click on “…” icon at the bottom right corner of the Form Calculation Widget.

 3. Click on options and enable “Result field is read only” option then hit the “back” button. 

Save your preferences. 

Your total should be “read only” after you complete these steps.

Let me know if you need help with anything else.