Problem: How to sort or order custom field value having dollar sign and commas as number field value using views sorting
Solution: You should use WordPress standard filter posts_orderby to remove dollar sign and commas from text filter value and sort it as numeric.
You can find proposed solution, in this case, with the following reply: https://toolset.com/forums/topic/remove-dollar-sign-commas-from-numbers-field-values/#post-908752
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