look for indicator can calculate win lose rate on the chart

 
hello
i look for indicator which can calculate profit loss calculation on the chart with specific term like 1 month.
for instance i load 2 MA period as 10 , 20 then if two MA cross each other i Buy or Sell and exit trade as when reverse Buy Sell signal appear
and want to set trading term as 1 month so i want to get result profit loss calculation sum for 1 month and result want to display on the chart.
i have similiar indicator but this only calcuate for 1 or 2 days.
anyone would help me to modify or have indicator what i want ?
thanks much
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