exercise period is 7 years. negative number in the table e.g. 25,000 or (25,000).) select "No Entry" for the account titles and enter 0 for the amounts.) "No Entry" for the account titles and enter O for the amounts.) exercise period is 7 years. negative number in the table e.g. 25,000 or (25,000).) select "No Entry" for the account titles and enter 0 for the amounts.) "No Entry" for the account titles and enter O for the amounts.)