Metrics changes with respect to time AKA Trending

We need some way to display our metrics with respect to time so that others can understand how we're doing. Right now our metrics are a snapshot in time. People don't know if we're making a lot of progress, a little progress, or no progress.

We need some way to show changes (Graph, Arrows, +-, something) so I can answer questions like:

1. How many KSAT's are you adding per week?
2. How long until you'll be at 80% done?
3. How many new KSAT's were made in the last month?
4. How many KSAT's were (added, modified, removed)?