Analyse data from worksheet in summary page

Greetings.

By varying the values in I3, I4, I5 it varies the corresponding values in the worksheet tabs(months) and then comes back and displays the answer in D and F column after doing some calculation.

I need to vary the values in I3, I4 and I5 with different combinations and display the months and values of all the 100 or more combinations. This is to analyse which combination is optimum.

Any help in pointing me in the correct direction would be greatly appreciated.