Abstract: Persistent storage contains data generated by applications, parameters of a telemetry application, and a tree-like arrangement of calculations that estimates a present value. Processor(s) are configured to cause the telemetry application to: obtain a first set of data generated by a first application; obtain a second set of data generated by a second application, the first and second applications belonging to an application class; determine a first present value for the first application based on the arrangement, the first set of data, and the parameters; determine a second present value for the second application based on the arrangement, the second set of data, and the parameters; determine a class present value of the application class based on the arrangement, the first present value, and the second present value; and determine an overall present value based on the arrangement, the class present value, and present values of other application classes.