Change in depreciation key

Hi All,

We are using
SLM for calculating depreciation with period control as 01/06/02/02. Now we
want to change the period control to 02/02/02/02.

When we change
the period control, system is calculating depreciation and reversing some
amount in current month and adjusting the same again in the month of march. See
example below:

1. Cap. Date :
   01-Apr-2014

Useful Life : 5
year (60 months)

Asset Value
Date : 30-Jun-2014 for $180,000.00

Asset Value
Date : 31-Aug-2014 for $ 9000

Depreciation
before change : $3,150.00 pm

After period
control change from 01/06/02/02 to 02/02/02/02, system calculates depreciation
as follows:

I didn't
understand the system behavior for recalculating the depreciation and
depreciation adjustment in period 10 and 12.

Is it correct?

Need your
advice.