Donor Giving Analysis and New Donor report do not match
Ensure the reports have the same parameters for determining new donors. For example, ensure the reports have the same values for the Date and Fund filters.
The New Donor Report gives the amount of the First Gift. The Donor Analysis Dashboard provides the total a new donor has given during the time frame selected so the dollar amount will not match if a new donor has given multiple gifts during the time frame set on the dashboard and the report.