Need code for remeber result

First I want to apologize because i dont know good english!
I use Excell 2013, create some program for cutting, i was create everuthing, but i need help to create VBA code fro next:

I have i another sheet some formulas what sum cell in other sheets. I need that when I click on a button that only then calculating the sum of all that I made, and that when you add new data to the preliminary list, and then click on the same button is cleared prior izrčunato than to add a new summation and non stop until they close ekcell only then that all the results back to 0!

Attaching a sample workbook enables others to work on your problem:

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Your post does not comply with Rule 1 of our Forum RULES. Your post title should accurately and concisely describe your problem, not your anticipated solution.

Use terms appropriate to a Google search. Poor thread titles, like VBA Programming help, Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will be addressed according to the OP's experience in the forum: If you have less than 10 posts, expect (and respond to) a request to change your thread title. If you have 10 or more posts, expect your post to be locked, so you can start a new thread with an appropriate title.

To change a Title go to your first post, click EDIT then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.

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