Calculated Column set through cached can store and reuse the calculated values whenever necessary to improve performance. At this point, if expand the calculation area to the grid or row group level, it can display the values of a particular purpose in the calculated column cell.
In the example below, it has appropriately combined calcBounds and calcRange of Calculated Column to calculate and display the total and inverse total of "Unit Price" and "Quantity" columns. If scroll the vertical scroll bar, you can check the cumulative progress.
If set CalculatedColumn.calcBounds as GROUP, it will calculate the total of the row group level. You can do row grouping by "Country" column and check "Total Unit" column.