How to make data entered on the first sheet and calculations on the second sheet?

Question

excel

Hello!
Can you please tell me how to make data entered on the first sheet and calculations were made on the second sheet?
Break even point, excel.
I will be grateful for help.
File below:
www.sendspace.com/file/qu5tfo

Answer 1

The second sheet can link to the first. In the formula input window, press =, and then go to the first sheet and select a cell on it - everything works fine.