Impact of credit note

Dear Experts

If I have reported a invoice of Rs 100 in my gstr1 for June 2022 and file a credit note of Rs 20 in gstr1 of July 2023 will my turnover for FY 2022-23 in gst portal for records be Rs 80 or Rs 100.

Further if its Rs 80 in gst data base for FY 22-23, will I need to have a reconciliation ready due to a mismatch in turnover between gst and income tax data base.

Regards,