Hi,
You have two issue, one is wrong settlement to asset, and wrong amount of deprecation is posted.
First of all you need to reverse the depreciation, to reverse the depreciation, just change the depreciation key to 0000 in asset master AS02, and repeat the depreciation run to reverse the depreciation for this assets. once you verified that depreaction is reversed for this asset, just go AS02 and again change the dep. key to original one.
Second step is to reverse the Settlement, you can reverse the settlement from the same t.code from where you have settled the order, lets say KO88, just go to settlement menu and Click on "Reverse"
After settlement reversal, create the correct settlement rule, and post the settlement, then again run the the depreciation AFAB in repeat mode, to post the correct deprecation.
I hope this will help you.
Regards
Javed