dep. on asset

Hi sejal

In the year 2006 asset purchased & charged with 100% rate of dep. wrongly.But in the year 2007 some capital exp. incurred for that asset & charged to that asset.Now we want to charge dep@19% on that asset from retrospective effect i.e from year 2006.& run the dep for the year 2007.I have tried it by changing the dep key in asset master.but it is not calculating the dep at 19%.

Pl. advice how to do this

Thanks

shivaji