can not check one then change another.

The 3 percentage items are related, you


other items must be deselected first.

changed when selected as a constant. The

The Base amount & percentages can be

select another item to be the constant.

Shift clicking on an item button will

A check mark indicates the constant.

constant for further calculations.

The first value entered will be the

values to be entered.

The percentage calculater requires two