Tax included selling price

lets say my selling price is $10, tax rate is 6%, usually total price is $10.60
now i would like to include the tax in my selling price as below
selling price included tax is $10 so the price before tax should be $10/1.06=$9.43, tax amount should be $0.57 total sum up = $10

my question is, how to setup an auto calculation for each product’s selling price to divide by 1.06 when added to order list?

Hi, look here or see the below link how to set-up