How to nullify the revenue account

Hi,

I have created one Sample Order and linked one adjustment for tax.

Suppose the Price of the Item is 100 and Tax is 10.

So, it is going to print in Invoice as 110.

But, Customer has to pay only the tax amount that is 10, so it is going to hit the account as 10 instead of 110.

Dmaai used:

Item (4220,4230,4240) (GL class - ABC)

Adjustment (4270)        (GL Class- NEW)

4220 - Rs -41  (Cost of Item)

4230 - Rs -100 (Price of Item) Revenue Account

4240 - Rs 41 (Nullifying the Cost)

4270 - Rs 10 (Adjustment amount)

Now, my question is how i can able to nullify this 100 rs, which is hitting the revenue account?