Solution : https://service.sap.com/sap/support/notes/506187 (SAP Service marketplace login required)
Key words : 
life / depreciation start date, life / depreciation start date 01/07/1996, uniformly decreasing percentage rates, fiscal year occurs linear, life / depreciation start, depreciation start dates, american 'depreciation guide' §426, explicit percentage rates, depreciation percentage rate, digital depreciation method
Related Notes : 
       
| 68518 | Digital depreciation method |