Goal Seek
Opens a dialog where you can solve an equation with a variable. After a successful search, a dialog with the results opens, allowing you to apply the result and the target value directly to the cell.
Default
In this section, you can define the variables in your formula.
Formula cell
In the formula cell, enter the reference of the cell which contains the formula. It contains the current cell reference. Click another cell in the sheet to apply its reference to the text box.
Target value
Specifies the value you want to achieve as a new result.
Variable cell
Specifies the reference for the cell that contains the value you want to adjust in order to reach the target.