Compute cost of an Item?
im not sure if i say it right.

i have an accounting software having this computation below.

    COST 100.00;
    +
    GST 10%
    ------------
    NET = 110.00

it has an options to input the the NET to get the COST or input the COST to get the NET. 

my question is how can i get the COST of an item if then given is the Net=110 and the GST=10%?
Compute cost of an Item?
===

im not sure if i say it right.

i have an accounting software having this computation below.

    COST 100.00;
    +
    GST 10%
    ------------
    NET = 110.00

it has an options to input the the NET to get the COST or input the COST to get the NET. 

my question is how can i get the COST of an item if then given is the Net=110 and the GST=10%?