Solution : https://service.sap.com/sap/support/notes/721487 (SAP Service marketplace login required)
Key words :
choose tab page 'price calculation', set flag 'execute intern, set fiscal year-dependent, cost centers / activity types, actual activity price indicators, double-click 'settings, actual price determination, iterative actual price, actual price indicator, detailed information refer
Related Notes :
597159 | Price calculation seems to calculate incorrect values |