An oil exploration company has an obligation to restore the mining site after ceasing operation. The cost of restoration recognised is $5million. The CA of the mine is $14million. The FV less cost of disposal is $11million with the buyer assuming the liability to restore the site in future. VIU is $13million which excludes the restoration costs. Calculate the RA of the mining site.
Why do we need to deduct restoration costs from CA when calculating impairment loss?