I need a formula!

[MsSMB]

I am not sure if this is possible but here is my dillema:

I am creating a cash log for my work. In one cell I have a checkbox denoting when money is put in the safe and when it deposited in the back; check mark (true) means in the safe, no check mark (false) means in the bank.

What i want to do is when the cell is false (no check mark) add an amount of money from one cell to another cell to total in a seperate, third cell. Here is the layout:

A	B	C	D	E	F	G
AMOUNT	TYPE	FROM	FOR	SAFE	CHECKING ACCT BALANCE	TOTAL BALANCE
						678.09
$100.00	CHECK	ANN SMITH	GOODS	**THIS IS THE CHECKBOX LOCATION***	678.09

<tbody>
</tbody>

OK: So when the checkbox is false (no check), how to I get the amount in A3 ($100.00) to automatically add to F3 for a total sum in G3? I only want it to add when the checkbox is unchecked....

Is this even possible? I'm not super great at Excel but am willing to learn and need help with this problem! Thanks!

 

[ranman256]

i dont use 'checkboxes' , instead I just mark an X in the cell as a 'check mark'. (easier)
thus:
F3=if(E3="",G2+A3,G2)

 

[MsSMB]

i dont use 'checkboxes' , instead I just mark an X in the cell as a 'check mark'. (easier)
thus:
F3=if(E3="",G2+A3,G2)

This formula did work, however when the X is present, it is duplicating the amount from A3 into G3....Is there a way to prevent this? I was thinking of taking out the F column all together but if I do that it doesn't work with that formula. Any ideas?