Asset Depreciation - first and last year with half of the depreciation percentage

Hi,

We have a requirement to depreciate the asset, with below logic.

Asset with 5 years life, with straight line per year = 20% per year.

But exception here is that, in first and last year, it has to be 10% for first and last year.

but 20% in the middle years.

Can anyone know how to configure this in system (i understand we cannot used STL, Table and Flat Rate here).

Thanks.

   

Name		Car 1
Depr standard period in years		5
Purchase price		10,000.00
Depr in first and last year		1,000.00
Monthly depr in first and last year		83.33
Scenario	1	2	3	4
Purchase date	1/15/2020	6/15/2020	12/15/2020	3/10/2020
Depretiation	Monthly	Monthly	Monthly	Monthly
Jan-20	83.33
Feb-20