Look it up...the general name for the tax that governments charge when you receive things from outside your country is called duty. Lookup the duty charge for your country - you should be able to calculate it.

Duty is often based on the value of the goods, but some countries may also impose a duty for other reasons. Other countries might just charge sales tax.

Be aware that you might have to pay some other fees that are over and above duty charges - like a processing charge or something similar.