TopPercent
The TopPercent function returns, in order of decreasing rank, the topmost rows of a table whose cumulative total is at least a specified percentage.
Syntax
TopPercent(<table expression>, <rank expression>, <percent>)
Applies to
An expression that returns a table, such as a <table column reference> or a function that returns a table.
Return Type
<table expression>
Remarks
The TopPercent function returns the topmost rows in decreasing order of rank based on the evaluated value of the <rank expression> argument for each row, such that the sum of the <rank expression> values is at least the given percentage specified by the <percent> argument. TopPercent returns the smallest number of elements possible while still meeting the specified percent value.
For example, assume that a table column named [Products] contains this table:
| Product Name | Unit Sales |
|---|---|
| Apples | 30 |
| Kiwi | 10 |
| Oranges | 40 |
| Lemons | 20 |
TopPercent([Products], [Unit Sales], 60) function returns the following table:
| Product Name | Unit Sales |
|---|---|
| Oranges | 40 |
| Apples | 30 |
Note that Apples was selected instead of Lemons.