I am looking for a process to very quickly decide lot dimensions based on amount you are targeting to risk for any currency pair.
Example:
I want to find out what needs to be my lotsize if I am prepared to risk $250 and my SL is at 35 pips for EURUSD?
I want to find out what needs to be my lotsize if I am prepared to risk $350 and my SL is at 45 pips for AUDJPY?
I want to find out what needs to be my lotsize if I am prepared to risk $650 and my SL is at 45 pips for GBPNZD?
I believe there is some spreadsheet which permits you to do this quite quickly. Can you point me in the ideal direction?