How to calculate number_of_trades & profit_or_loss made Today, ThisMonth and LastMonth?

[Mark Salvacion]

Could someone help me out? I want to display in COMMENT(); the following:

Trade Statistics

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Today's Trading       :   <TT_number_of_trades_made> / <TT_profit_or_loss> - <TT_gain_in_percentage> %

This Month's Trade   :  <TM_number_of_trades_made> / <TM_profit_or_loss> - <TM_gain_in_percentage> %

Last Month's Trade   :  <LM_number_of_trades_made> / <LM_profit_or_loss> - <LM_gain_in_percentage> %

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Any ideas? Thank you!