I think that you are too low on medical and insurance in both cases. Of course, this is if you count your salary before or after taxes, which is not quite clear in the text. Usually salaries in Bulgarian statistics are given before taxes.

Unfortunately, I do not know the exact percentage, but I pay considerably more for these things. Entertainment and clothing is also questionable, being too low, if you plan some entertainment and vacations outside Sofia.

Quite a large amount of my expenses are communications and Internet - two land lines, two mobile phones, an internet line,  and cable, but I guess I am not the typical case, typically they must spend at least 50 leva. Many young professionals in the upper scale (case 1) drive second hand cars, which amount to more expenses.