Sustainable win rate percentage

About 5 months ago I started tracking my results. I live and play in Las Vegas. I only play doubledeck games. I am a green/black chip player. I normally only play black on games that are S17. I now have 100 sessions recorded and wanted to get some feedback on my win rate percentage. After 100 sessions I have won 88, lost 10, and broke even 2 times. I know this is a pretty small sample size. I am wondering if this seems like a normal win percentage or am I just on the right side of variance? My average win is $635, average loss is $1017. My standard deviation is $720.21. Thanks in advance for your feedback.