The module installed in my Magento store "WeltPixel" does not account for discount value when calculating revenue, but it does produce a discount variable, so I'd like to subtract discount value from the e-commerce-total before returning to bing UETQ tag for variable revenue tracking.
I have a custom script that does the math and saves the value as a variable (constant) in GTM, which works with Analytics, but when I add that variable to the UETQ GTM tag, the results in my browser test returned that variable as gv:google_tag_manager["GTM-KHPSMZ"].macro(\'gtm111\'),gc:"USD"}); instead of the actually expected value e.g. 29.99.
How would I do this mathematical operation in tag manager in order to derive the revenue value I need and pass it on to Bing?
