A method for explaining a value of a selected field includes obtaining a calculation tree for the selected field, where the calculation tree represents dependencies between the selected field and precedent data elements. The method further includes obtaining a first equation associated with the selected field from the calculation tree, and displaying a first value associated with the selected field and the first equation in symbolic form. The first equation includes a first precedent data element. The selected field is dependent on the first precedent data element. The method further includes receiving an expansion request for the first equation, obtaining a second equation associated with the first precedent data element, and displaying a second value associated with the first precedent data element and the second equation with the first value and the first equation in a dependency hierarchy.