# On cost and commission rule types

**Flat Margin - **the flat margin rule type will add a set figure as an additional on cost to the timesheet.

**Percent Margin - **the percent margin rule type will add a set percentage of the pay / bill amount as an additional on cost to the timesheet.

**Percent with Max Margin - **the percent with max margin rule type will add set percentage of the pay / bill amount as an additional on cost to the timesheet, and you can set a maximum amount that it can't exceed.

**Percent with Min Margin - **the percent with min margin rule type will add set percentage of the pay / bill amount as an additional on cost to the timesheet, and you can set a minimum amount that it can't be under.

**Percent with Max Margin per Unit **- the percent max margin per unit rule type will add set percentage of the pay / bill amount as an additional on cost to the timesheet for each unit worked and a maximum amount it cannot exceed.

**Percent with Min Margin per Unit - **the percent min margin per unit rule type will add set percentage of the pay / bill amount as an additional on cost to the timesheet for each unit worked and a minimum amount that it can't be under.

**Percent with Max Min Margin **-** **the percent max min margin rule type will add set percentage of the pay / bill amount as an additional on cost to the timesheet for each unit worked with a minimum amount it can't go under and you can set a maximum amount that it can't exceed.

**Percent with Max Min Margin per Unit **- the percent max min margin per unit rule type will add set percentage of the pay / bill amount as an additional on cost to the timesheet for each unit worked, and you can set a minimum amount that it can't be under, and a maximum amount it cannot exceed.

**Flat Margin Per Unit - **the flat margin per unit rule type will add a set figure as an additional on cost to the timesheet for each unit worked.

**Percent Margin Per Unit - **the percent margin per unit rule type will add a set percentage of the pay / bill amount as an additional on cost to the timesheet for each unit worked.