Why is the theatrical animation more expensive than the TV animation?

It is inevitable that the cost of theatrical animation is higher than that of TV animation.

First: the length of the film ... TV animation is 20 minutes each and theater animation is about 60 minutes.

Second: the script problem ... in the theatrical animation, the beginning, end and turning point of the story should be shown, while TV animation often uses 10-20 episodes to show these ... so the number of screenwriters in the theatrical animation is more than that in the TV animation.

Third: the problem of production level ... the production of theatrical animation is generally better than that of TV animation. ...

Fourth: the cost of publicity ... because the story of the theatrical version is different from the original TV animation, it needs to make great efforts in publicity to ensure sales.