Hi Chris,
Thank you for explaining in detail about the use case. On this forum, we address concerns specific to AdWords API/Google Ads API implementation. If you’re looking for an AdWords API solution, it is currently not possible to compare metrics from different date ranges as in Scripts. However, you will be able to segment the reports by
Date and compare the metrics for that day on your end. You may refer to
this guide on how to set the date range through the API. Hope this helps.
Regards,
Bharani, Google Ads API Team

ref:_00D1U1174p._5001UODGus:ref