Key Output of function in is some optional text indicating the type of output that must be reported.
The default is Price that results in reporting the calculated price alone. More info at
A frequently used text is Full that results in reporting the calculated price alone. More info at
Two other possible - but not often used - texts are Price+Input and Full+Input as described respectively at and
Advanced pricing output such as P&L, Carry and Roll may be produced by supplying here the text Advanced. More info at