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I have checked your test form, Test quick quote, and I see you are having the same issue as mentioned in the notes of the setup. Your form is using a Number field for the Total, and a number field cannot contain anything else except numeric values.
If you want to pass a calculated amount with a dollar sign, you must use a regular Text Box field instead:
When setting up a Text Box field as the output of the calculation, it will be able to hold a currency symbol. Please also insert the dollar sign in from of the calculated amount in the condition:
Please try it out and let us know how it goes. Thank you.