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Lol, it depends on what your eyes could capture in the photos.
It's a wedding reception and you know the crowd at every wedding reception. Each table had 8 seats cause the table was huge.

You mean the cost of decorating or renting the hall? That's two different things so which of them?

Decorating I mean.

I guess it's big then

It doesn't have a fixed price though, it's negotiable.
Some cost 100+ there are even some that cost over a million depending on what you want and the person doing the decoration.