iPhone 12 battery health dropping fast????

I have been using my iPhone 12 since early November! Recently, however, my iPhone 12 has been loosing battery health capacity. At first in just last one, which is totally normal. However, my phone has been loosing one percentage each week thus far. Specifically, it was at 99% on July 9 (which seems normal). Then, it went down to 98 one week later. it went to 97% the following week. Recently (today august 10), it went to 96 percent! I don't know if this is normal loss rate, but it does not seem right that I have been loosing so much over so little time. Should I leave it or should I consider making an appointment with Apple? Or should I just stop even thinking about this, since this is a small problem!