Solution : https://service.sap.com/sap/support/notes/755793 (SAP Service marketplace login required)
Key words : 
prior periodtb_src_shrt_desc     rx ms % growthtb_nmbr_format_cd    ptb_calc_rtn          imrb20l1sls_hist_data_type   m2, contract member sales history data table tctmbrslhs, tb_src_code          064cont_or_rbt_code     rtb_src_full_desc     rx ms % growth, symptom rebates 'rx ms % growth, 22 ttbsrc tier base source code, rebate master 'rx ms growth, 1 start table validation module, rebate administration online module, 'rx ms growth, % growth rebate calculation programs
Related Notes : 
       
| 761171 | CPCC Service Package 2.2.300 | 
| 759096 | Rebate Master Unit % Growth vs Base Does Not Calculate | 
| 656759 | Performance issues in rebate summary programs |