Sometimes abbreviated as PPO.
Is a momentum indicator.
Is computed using the close prices.
Returns two time series. The first is the percent difference between 9- and 16-period simple moving averages, and the second is a signal line represented as a 9-period simple moving average of the first.
FinancialIndicator["PercentagePriceOscillator",n1,n2,n3] uses periods and for the first series and period for the second.