You can forecast when you will run out of resources based on how your environment has grown historically.
The calculations check the historical trends, and project when one of these values will reach 100%:
100% is the default outage threshold. For information about customizing warning and outage thresholds, see Customize capacity planning calculations.
The utilization graph shows the actual consumed capacity of the resources.
The consumption view shows the historic values, a best fit line, and the calculated dates when the resources will reach the warning and outage thresholds, based on the historical trends.