Can the asset liability figure be updated for migrated leased assets?

When assets were migrated, the asset period was set to August and the system calculated the liability as if it was August.

We then wound the period forward to October and connected the assets to the leases in the October period.

However the asset liability is still showing as August and not October as an example an asset with a value of £10,000 and monthly payments of £1,000 should have a liability of £8,000 not the £10,000 that is showing.
The question is can this liability amount be changed without having to retire it and reload it.

There are around 170 assets affected by this