Mattress$$ Wholesalers, Inc. is constantly trying to reduce inventory in its supply chain. Last$$ year, cost of goods sold was $$$$7\mathrm{.}54$ million and inventory was $$$$1\mathrm{.}46$ million. This$$ year, costs of goods sold is $$$

$8\mathrm{.}62$ million and inventory investment is $$$$1\mathrm{.}59$ million.

$$a$)$ What was its weeks of supply last$$ year?