column C, D and column E has different numerical values.

column D is calculated on the basis of cell T1 and column E on the basis of cell T3.

Colum C is just hard input.

Column F is a value (4 or -4) calculated on the basis of column D and column E.

T1 and T3 can only be between 1 - 100

Column G is calculated as follows...ex. G10 is calculated using values from C9, F9, F8 and G9.

Assume G100 is ex. 500.

Changes in T1 and T3 will ultimately lead to a change in G100.

How can I alter T1 and T3 in order to give the largest value for G100.

So I need to find the combination for T1 and T3 that will give the largest value for G100.

any ideas?