Good day Community

My client is looking to change the life if a Class if assets from 36 months to 60 months from the end of a financial year.

The challenge is they want to depreciate to remainder of the (extended) life of the asset over the remaining time (60 months - age to year-end) but depreciation now calculated as (NBV at year-end / remining life) and NOT (Orig.Cost / remaining life), e.g.

Orig. Cost 07-2023        100 000.00       

NBV 12-2023                   86 111.11          

remaining months         55.00   

New Month depr             1 565.66  (86111.11/55)

Does anyone have any idea how I would set the deprecation for such a calculation please?

Many thanks in advance.