Summed fields not sorting correctly.

I'm using VAP to group and compress sales data from Ubercart. My fields are date, sku, qty sold and total price. I have my table set to group and compress on SKU, and to sum the qty sold and total price fields in group, and for those columns. In the view, I am sorting the query ascending by sku then descending by date. I have the date field in the table set to show first member, as my date sort is descending to see date last sold.

When I sort on qty or price, the numbers aren't sorted properly.

I have a test system I can give login info to the dev(s) if needed to reproduce.