# TopPercent

The **TopPercent** function returns, in order of decreasing rank, the top-most rows of a table whose cumulative total is at least a specified percentage.

The **TopPercent** function returns the top-most 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 that is 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 the following data:

Product name | Unit sales |
---|---|

Apples |
30 |

Kiwi fruit |
10 |

Oranges |
40 |

Lemons |
20 |

In this example, the following function:

TopPercent([Products], [Unit Sales], 60)

returns the following table:

Product name | Unit sales |
---|---|

Oranges |
40 |

Apples |
30 |

Note that Apples is selected instead of Lemons.