Forex

For Specifically Exchange Margin in Forex, Think from Bank's point of View..u know they anyone always want to sell any commodity at higher rate and purchase at cheaper rate...same concept applies..Practically in current market scenario bank quotes two rate in Bid/Ask form..ie. Bid is the Buying rate (always kept in L.H.S)  and Ask rate  is the selling rate ( both from banks's view). So for thinking ex.Margin whether  to Add or Less..wht is the transaction is gng to happen..If u as a customer want to sell..that means bank is buying and they prefer less rate..so whatever be the Bid rate,Margin is to be deducted with that Bid Price.

In your case assuming $1 = 60 be the buying rate for bank (i.e. Selling rate for customer), 8% (i.e. Buying Commision) = 8% on 60 is to be deducted with 60 which equals to 57.2 per Dollar. In your ques, bank will quote $1 = 57.2.

Hope it will clear ur doubt..still if u hv any confusion,pls leave ur doubt..

regards