Pie Chart only negative or zero values

[jalanhart]

What is a good way to troubleshoot this error message on a pie chart? 

I am trying to divide up the total value of inventory by it's type, and yes some have zero dollars on hand but there are no negative values. 

How can I get this pie chart working?

[Chanty4u]

Try this 

IF(Sum(InventoryValue) > 0, Sum(InventoryValue))

Or 

Sum({<InventoryValue={">0"}>} InventoryValue)

[Bhushan_Mahajan]

@jalanhart Try rangesum