Depreciation Key - straight line for the next upcoming 33 months
I need to adapt the depreciation of around 200 assets as follows:
a) regardless of the expired useful life these 200 assets should be deperciated over the next 33 months.
EXAMPLE: UseLife = 10 ; Exp. UseLife = 9 ==> regardless of the current useful life of just one year, the asset shoud be depreciated of the upcoming next 33 monts = 2 years and 9 months
b) These 200 assets should be depreciated over the 33 months with " straight line over remaining useful life"
c) This adapted depreciation should start from October 2015. The month before october should be not recalculated.
What is the best Approach to ensure this requirement?
1) create new asset with depeciation key "straight line over remaining useful life" ... and transfer current assets to the new assets?
2) adapt the useful life of These 200 Assets and assign a new depreciation key which ensure above requirements.
---> but how to ensure that the new depreciation key is just valid from October 2015 without recalculationg the already closed periods of the current year?