You have maintianed Cutsomer Specific Price List (Gross) but the price is not displayed in account master data.
SAP Business ByDesign
Reproducing the Issue
Go to Account Management work center.
Go to Accounts view.
Open the account ABC and go to Prices tab. (ABC represents the ID of the account).
In Customer Product Prices tab, the gross price is not displayed.
Gross prices are not displayed in the account master data, only net customer specific prices are dispayed.
This is currently the system design.
KBA , SRD-CRM-ACC , Account Management , How To