IT 7 Pro Productivity Statistics counting with a negative?

I've noticed the last few weeks that my IT 7 Pro productivity shows my History statistics with a negative in front of Percent Saved and Productivity Gain, so it actually looks like I'm going backwards in my productivity?? However, the Session statistics still show positive numbers. Not sure why it's showing this. In all my years of owning and using all my versions of IT Pro (about 20), I've never had this happen.