I’m guessing you’re using the Training Plan tool and you’re seeing something like this:
You can tell that the ramp rate is different across different weeks because your fitness is changing week over week.
The Training Plan tool is supposed to help you make reusable collections of workouts over a many weeks so by default it doesn’t make an assumption about your starting fitness level and starts you off at zero. In this case your fitness would be 6 after the first week.
However, the tool allows you to select a starting fitness (and fatigue) for your plan:
Here’s what those three weeks of training would like if we set the starting fitness to 74 and fatigue to 70 (the values on your first screenshot):
You can see that the Ramp rate is negative for all three weeks! That’s because a weekly load of 295 is not enough to sustain that level of fitness and its value is decreasing week over week (74 → 69 → 65 → 61).
I hope this helped you understand how to use the tool a little but better, but like @MedTechCD pointed out, it’s essential to understand how the Fitness, Fatigue, Form, and Ramp rate values work. The whole platform is sprinkled with links and references to how the different metrics work but probably the best way to learn is to spend 10 minutes reading the Fitness page guide: