Table:
|  | June 30, |  |
| --- | --- | --- |
| ($ in millions) | 2019 | 2018 |
| Raw materials and supplies | $169.8 | $157.5 |
| Work in process | 425.7 | 372.5 |
| Finished and purchased products | 192.2 | 159.2 |
| Total inventory | $787.7 | $689.2 |
Paragraphs:
6. Inventories
Inventories consisted of the following components at June 30, 2019 and 2018:
If the FIFO method of inventory had been used instead of the LIFO method, inventories would have been $178.4 million and $210.3 million higher as of June 30, 2019 and 2018, respectively. Current cost of LIFO-valued inventories was $793.0 million at June 30, 2019 and $760.8 million at June 30, 2018. The reductions in LIFO-valued inventories decreased cost of sales by $0.0 million during fiscal year 2019 and $0.6 million during fiscal year 2018 and $0.0 million during fiscal year 2017.
Question:
What was the effect of reductions in LIFO-valued inventories?