Unlike those whose net worth has increased, ours has decreased since DH retired 5 years ago and I went very part-time, working from home. Note that this was expected. We had kids in high school and/or college during this time so our expenses are much higher through next year than they will be in the long term. I fully anticipated our net worth going down. It hasn't gone down every year. During 2013, it went up. During 2014, it went down less than I had projected. For this year to date, it has also gone down less than I projected.
Firecalc still says 100%. In fact, the future spending we can do (post-2016) and still be at 100% has gone up during the past 5 years. But, still, I feel a pang when I see that net worth number go down. But, I remind myself that it (1) hasn't gone down as much as I had projected and (2) this was all planned and everything is still according to plan.