Backtesting for Stocks in Excel UDF using C++

I would like to have back testing created for an investment strategy in excel. The back testing would be an Excel UDF created using C++. Below are the back testing metrics I would like to see for the strategy. The strategy uses a standard deviation formula for stocks to enter a trade. The exact strategy will be provided to winning bidder to code back testing. - Number of trades - Winning % of trades - Losing % of trades - Average winning trade % - Average losing trade % - Biggest winning trade % - Biggest losing trade % - Average days trade was open - Maximum Open Loss % Requirements: The main requirement is good and fast C++ coding for EXCEL VBA.