Thank you all for your great feedback.
I sent the budget to my client with an extra charge for “short calendar”.
They don’t really have money for the project, but they didn’t ask me to low my prices, instead, they reevaluated their needs and the video will be shorter. Now I need to re-budget the project and of course is going to be less money, but not because my work is cheaper, it’s because it will be done in less time.
And, of course, I’ll still include the little extra charge.