Hello Remy,
Portfolio Rotation Strategy calculates a specific indicator by using every instrument in the
portfolio. Positions are opened for those instruments which have the best indicator values. The
wiki article provides an example with % Change indicator used for calculation.
The Percent Change function (used for %Change indicator calculation) is specified in the Formula input.
Please note that the wiki page you are referring to offers a general explanation of how the
Portfolio Money Management Signals work. To view the entire script, please open it in PowerLanguage Editor through File > Open.