The indicator displays the percentage of the price change for the specified period of the specified pairs. - Free download of the 'Rate Of Change (ROC)' indicator by 'mrak' for MetaTrader 4 in the MQL5 Code Base, The DecisionPoint Price Momentum Oscillator (PMO) is an oscillator based on a Rate of Change calculation that is smoothed twice with custom exponential moving averages. Because the PMO is normalized, it can also be used as a relative strength tool. PMO can be used in many ways: PMO can be used to determine the OB/OS state. While the + to is the usual range for broad stock Missing: firefox. When a security price advance from 10 to 20 then price rate of change is % but when it decline from 20 to 10 then price rate of change is 50% only. That is why technical analysis indicators like "Price Rate of Change" (ROC) or "Momentum" gives higher readings for ascending price movements than that given to descending sroaden.siteg: firefox.