i have 550 tickets to be sold which are represented by c3. all tickets sold
are been recorded in this sheet. I have just sold thirty tickets and it is
recorded in c6. I want excel to tell me how many tickets i have left to sell
after i enter how many i have just sold.

Try this formula:

=C3 - SUM(C6:C100)

assuming you will put numbers of tickets sold each day in the range C6
to C100.

Hope this helps.

Pete

Hi Pete, thank you for your help. I tried this method and when i put it in it
asks for row,sum,height,width and when i enter these it says it cant do the
formula. Am i doing something wrong?
Ciara

"Pete_UK" wrote:

Try this formula:

=C3 - SUM(C6:C100)

assuming you will put numbers of tickets sold each day in the range C6
to C100.

Hope this helps.

Pete