https://support.esri.com/en-us/bug/when-adding-own-data-to-the-esri-business-analyst-web-a-bug-000101762
BUG-000101762 for ArcGIS Business Analyst Web App
When adding own data to the Esri Business Analyst web app, the numeric data is not imported or handled as expected.
arcgis business analystbugwebapp