It looks like the author is Brazilian, and they use a dot to describe a thousand.The comma comes to separate the Reais (full currency) from the Centavos (fractions of a Real - singular form of the currency name).Hope it explains enough.

I have to say, despite the highs and lows of the update stability, the author is doing a great work with this story.I see that he probably messed up at some points, got lost in others, but the way hes'sdeveloping the story, since the academy arc, has much more consistency than ever.He still seems like having a long way to go in working the characters, but some of them are very charismatic, and I'm loving the way the story is unfolding.I'm curious about what will happen at chapter 106.Thank you for your work and effort, author.I hope there are more readers like me that will give you the support you deserve.Dont't give up!