To determine financial worth. To ascertain the amount of damages. To fix and adjust the individual shares to be contributed by several persons toward a common beneficial objective in proportion to the benefit each person will receive. To tax by having qualified experts estimate the value of property by considering the nature of the property, its size, the value of other comparable property, and the proportionate share of services that is used by that property. To levy a charge on the owner of property that has been improved at the expense of the local government unit, such as when sewers or sidewalks are installed.