How to charge depreciation on scrap value

we have a leased asset of which useful life of 4 years is completed and scrap value is remaining say Rs.1000 (Which is showing as WDV)

Now as per the requirement, we want to depreciate partial scrap value say 500 in 3 months and remaining 500 in another 3 months.

is there any standard configuration to charge depreciation on scrap value