The story doesn't need to be read closely. It's not a murder mystery where you have to figure out the clues. The math doesn't matter. Treat it as if you were casually listening to people talk in a diner. Don't let the transcription errors distract you, either. It's a just a story with a message - basically take care of yourself and those you love, and don't worry about things that you can't control.
Hang in there. You'll get through this, too. :-)