The storage report gives you insight into how much inventory you currently have in the warehouse, how long it's been there, and how much inventory you need to sell to avoid storage charges.
The top of the report gives you quick data points:
Total Unique Skus: Quantity of individual products stored at the warehouse
Started with Total Units: Quantity of units accepted at the warehouse in the start of the timeframe indicated in filter settings
Ended with Total Units: Quantity of units remaining at the warehouse at the end of the timeframe indicated in filter settings.
Total Bins Used: Quantity of bins used to store product in the timeframe indicated in filter settings
Total Micro Bins Used: Quantity of micro bins used to store product in the timeframe indicated in filter settings
Total Pallets Used: Quantity of pallets used to store product in the timeframe indicated in the filter settings
The "# of days until charged" and "# to sell to avoid charge" help you gauge which products and how many need to sell before the end of the 60 day free storage limit.