pre_text: 19. Inventories Note 1. Finished goods in 2018 includes $1.8 million relating to deferred costs which has been reclassified from trade and other receivables; see note 2 for further details. An expense of $1.6 million (2018 $0.1 million) has been charged to the income statement in the year for inventory write-downs. There were no reversals of prior period inventory write-downs (2018 nil). No inventories are carried at fair value less costs to sell (2018 nil).
table: 2019 2018
table: $ million $ million
table: Raw materials 4.8 6.6
table: Work in progress 1.2 1.2
table: Finished goods¹ 14.6 19.7
table: 20.6 27.5
question: Analyse this data from a financial earnings document. What was the change in total inventories?