[amibroker] Why is there such an arithmetic error for a very simple calculation?

["ezbentley" <ezbentley@xxxxxxxxx>]

Please try the following very simple Exploration on INTC on 6/13/2007:

//////////// Code begins ////////////
HighEMA = EMA(H, 21);
LowEMA = EMA(L, 21);

MaxTradeLoss = C - LowEMA;
MaxPercentLoss = C / MaxTradeLoss;

Filter = Cross(C, HighEMA);
AddColumn(C, "Close");
AddColumn(LowEMA, "LowEMA");
AddColumn(MaxTradeLoss, "MaxTradeLoss");
AddColumn(MaxPercentLoss, "MaxPercentLoss");
//////////// Code ends ////////////
/*
Exploration shows:
INTC 6/13/2007 Close = 22.67 LowEMA = 21.85
               MaxTradeLoss = 0.82 MaxPercentLoss = 27.57(?)
*/

The Exploration showed that MaxPercentLoss = 27.57, however, 22.67 / (22.67 - 21.85) is 
actually equal to 27.6463. 
Does anyone know why Exploration gives slightly different number for such a simple 
calculation?
Any help is greatly appreciated.






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