Table:
2019	2018

Notes	$'000	$'000

Current assets

Opening balance at 1 July	5,713	5,713

Item reclassified from freehold investment property	10.4	2,068	4,400

Item reclassified to freehold investment property	10.4	(5,713)

Disposals during the year	(961)	(4,400)

Total assets held for sale	1,107	5,713

Answer the following question drawing on the provided table together with the text, produce your answer and, if helpful, briefly explain your calculation. Conclude with JSON: {"answer": ["ANSWER"], "scale": "SCALE"} ("scale" = "" if no unit).

Background:
10.2. Assets held for sale
On 21 December 2018, the Group entered into an agreement for the divestment of a component of freehold investment property in Melbourne, Victoria for $1m. This has been included within fair value adjustments in the statement of profit or loss. This transaction settled on 15 January 2019.
On 28 June 2019, the Group entered into an agreement for the sale of commercial investment property in Dunedin, New Zealand for NZD $1.3m less cost of sale of NZD $0.1m (AUD $1.2m less cost of sale of $0.1m). This has resulted in an unrealised gain of NZD $1.2m (AUD $1.1m) on the asset’s carrying value. This has been included within fair value adjustments in the statement of profit or loss.
As at 1 July 2018, the Group held a contractual agreement for the sale of the land and buildings of the Croydon self-storage centre for $5.8m, less cost of sale of $0.1m. This resulted in this asset being classified as held for sale. Due to unforeseen circumstances outside of the Group’s control this transaction did not proceed. At 30 June 2019 the asset has been classified as freehold investment property and is no longer held for sale.

Question: What is the change in Other intangible assets Amortisation 2018 to 2019?

1,107-5,713, therefore {"answer": "-4606", "scale": "thousand"}