Interesting Gerbil Facts: 1  Gerbils are small animals. They can reach length of 6 to 12 inches (including the tail) and weigh 2 Â½ ounces. 2  Whole body, including the tail, is covered with fur. Color of the fur depends on the species. 3  Gerbils have long hind legs adapted for jumping.
Planned Value (PV) This is the first element of earned value management. Planned Value is the approved value of the work to be completed in a given time, or you can say that it is the money that you should have earned as per the schedule.
Wikipedia refers to marginal value as, the change in economic value associated with a unit change in output, consumption, or some other economic choice variable. Marginal value can also be defined as the additional value added from the next consumed unit. For example, giving a slice of bread to someone without any would be of great value to them. However, the next slice would not have as much value.