Current rate to exchange ECUmoney with Liberty Reserve at https://www.swapgold.com/ is:
$1 ECUmoney = $0.96 Liberty Reserve

So you will get $9.60 Liberty Reserve for $10 ECUmoney. Later you can change your Liberty Reserve with other members who are willing to sell Paypal for Liberty Reserve. Normally rates being:
$1.00 Liberty Reserve = $1.10 Paypal or $1.20 Paypal

So you will get $10.56 or $11.52 Paypal for $9.60 Liberty Reserve.
Means For $10 ECUmoney you can get $10.56 or $11.52 Paypal.
I really dodn't know about these currency exchange system before. It's very useful to me. So I think it's more worth participating in WTH than any other PTP forums. Their rate is really high. They have an edge.