Depict the same story.
A more formal way could be 'portray the same story'. When we use 'portray', it gives the sense of a more detailed and perhaps more artistic representation of the story, which is more formal than simply 'telling' it. Another option is 'convey the same account'. 'Convey' implies a more sophisticated transfer of information, and 'account' is a more formal term for'story'.
Narrate the identical account.
Some other ways are 'narrate a story', 'relate a tale' or 'recount a story'.
Deliver an anecdote. In a formal setting, delivering an anecdote is a more refined way of telling a story. An anecdote is usually a short and interesting story about a real incident or person. It can be used to illustrate a point, make an argument more persuasive, or just add some color to a speech or presentation.
In a formal context, you can say 'conclusion' or 'the final part'.
Depict events. In a business presentation about past projects, you can depict events that took place during the project's lifecycle. This is a way to tell the story of the project in a more professional and organized manner.
The end. It's a simple and straightforward alternative, just like 'end of story' but more concise.
Relate anecdotes. When you relate anecdotes, you are sharing short, interesting stories from your life or something you've witnessed. For instance, at a family gathering, people like to relate anecdotes about their childhood.
Well, 'mournful story' is one way. Also, 'gloomy yarn' and 'melancholic anecdote' can be used instead of'sad story'. These expressions not only convey the basic meaning of a sad story but also add a bit of a different nuance. For example, 'gloomy yarn' gives a sense of a story that is not just sad but also has a kind of dark and dreary atmosphere around it, like a story told on a foggy, cold night where everything seems a bit more desolate.
Well, you could also say 'it's over and done with', 'that's the final word on it' or 'case closed'. These expressions are often used to signify that there is no more to be said or added regarding a particular situation or narrative. For example, when you've finished explaining something and don't want any further discussion or argument, you can use one of these phrases to make it clear that the matter has been fully addressed.
Some other ways to say 'the end' in a story are 'conclusion', 'finale', 'closure'.