Hi,
Hope you are doing well.
I am a Google Analytic and Google adword certified professional & Google Tag Manager with over 10 years experience.
With AdWords conversion tracking, you can see how effectively your ad clicks lead to valuable customer activity, such as website purchases, phone calls, app downloads, newsletter sign-ups, and more. Depending on the type of conversion you’re tracking, the setup process is different, so the first step in setting up conversion tracking is choosing a conversion source, or where your conversions come from.
Enter a default numeric value in the "Conversion value" field, then replace the line var google_conversion_value = … manually with the following:
var google_conversion_value = totalValue;
Thanks
Margub