I'm running sales reports within Magento and I see that last month I did (roughly) $12000 in sales total and $5100 invoiced. Although I'm aware that these numbers shouldn't completely match, I would assume that they should be roughly around the same total.
I also ran a report on completed sales totals on my PayPal merchant account and I have confirmed that the sales totals are (within a margin of error) around $12000.
Looking in the past months, I see that these numbers were closer and within $300-500 off which is more reasonable when you take into account the cancelled orders.
The issue started to happen in June and this happens to coincide with the date that I upgraded from Magento 1.7.2 CE to Magento 18.104.22.168.
Why are my invoiced total's incorrect?