Solution : https://service.sap.com/sap/support/notes/1055071 (SAP Service marketplace login required)
Key words : 
save float key figures, 0 bi            import support package 14, terms bi accelerator, rounding errors reason, solution sap netweaver 7, bi accelerator, key figure, rounding errors, sap netweaver 7, support package
Related Notes : 
       
| 991094 | SAPBINews NetWeaver 7.0 BI Support Package 14 | 
| 883726 | BIA 7.00: Central Note SAP NetWeaver BI accelerator |