Your item's cost and currency are required in order to set your Min and Max prices with the Formula Builder.
To Set Your Cost/Cost Currency on an Individual Listing
The cost and cost currency fields in the edit listing box allow you to enter the cost for your SKU and set the appropriate currency.
In order to set the currency, the dollar amount you enter into the cost field must be greater than 0. Negative amounts will not be used.
To Set Your Cost/Cost Currency in Bulk
You can also use templates to update your cost/cost currency. The cost and cost currency columns are included in the "All Available Fields" and the "Set or Update Cost" templates. Cost values that do not have a currency specified will be exported into these templates as USD. If you have a cost specified in your file but no currency set, the file will fail. If you upload a file that has currency indicated, but not cost, the currency codes will not be applied to your listings.
Currency Code Key
|NZD||New Zealand Dollar|
|HKD||Hong Kong Dollar|
|ILS||Israeli New Shekel|
|TWD||New Taiwan Dollar|