if you want to withdraw, it is free because the receiver pay for it. But if you received into your lr account, you have to pay transaction fees of 1% of the total amount you received. note that minimum transaction fees is 0.01$ and maximum is 2.5$. if you withdraw 1000$ or 10000000$ it is still $2.5 fees.
I sell/buy liberty reserve worldwide. you can contact me 08060250133 Gabriel