The rule of 100 to 0.01. The meaning of it is that it is desirable to have at least $ 100. USA Deposit for every 0.01 standard lot open trades. For example, for 0.1 standard lot of EUR/USD it is recommended to have a Deposit of at least $ 1,000, which will optimize the risks and painlessly survive the possible loss.
For beginners in the Forex exchange market it is recommended to start with a Deposit of minor size, such as $ 100. US opening in this case deals with the maximum lot size is 0.01. Work this volume would not generate significant revenue at first, but will give the possibility of obtaining the necessary experience to transition to a greater volume of trade