A target variable which results from one source expression can be used in a subsequent source expression. All three target variable types (string, decimal, and integer) can be used in a source expression. Here is an example:
$FinalTotal = $SubTotal + 15.00
In this example, the value of the decimal target variable $SubTotal (which was previously calculated) is added to the constant value of 15.00. The result is stored in a new decimal target variable named $FinalTotal.
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