Vision Ltd acquired all the assets and liabilities of Hazel Ltd on 1 January 2018. Vision Ltd's activities were run through three separate businesses, namely Sandstone Unit, the Sapphire Unit and the Silverton Unit. These units are separate cash-generating units.

Vision Ltd allowed unit managers to effectively operate each of the units, but certain central activities were run through the cooperate office. Each unit were allocated a share of the goodwill acquired, as well as a share of the corporate office. At 31 December 2018, the assets allocated to each unit were as follows:

*these assets have carrying amount less than fair valve less costs to sell.

**this asset has a fair valve less costs to sell of $290.

calculate of impairment loss for all division