@Tut @Brucanna there is actually many reasons for wanting to know this.
First of all, if you run any type of commerce or retail store you already know your prices. There isn’t a fixed margin since MAP and MSRP affect margins on each product differently. If you can see the total sales value of your inventory you will know your effective margin for planning purposes.
There are also costs associated with carrying stock. Hence, lets say you are deciding if you should write off some items or keep them in stock while accumulating warehousing fees. You know the cost of warehousing and cost of inventory, as well as projected sales value based on your current prices. It will then be easy to plan whether or not to write off, to offer a sale, or to keep going as usual.
Another reason to know the sales value of inventory is if you know your average inventory turnover rate. If you have access to your sales value total of inventory you can forecast income based on inventory turnover rate.
Of note is that many inventory management applications offer this and it is useful for forecasting. Since we already have these columns in manager.io, is there any way to get the total without manually going through thousands of SKUs?
Edit: Ended up exporting my inventory and doing some quick excel to get the information I was after.