The MAPC (Moving Average Percentage’s Change) indicator shows the percentage
change in the moving average from one period to another selected period and allows you to
track the smoothed rate of price change.

The MAPC indicator is calculated using the formula:

MAPC[i] = 100 * (MA[i] – MA[i – n]) / MA[i], 

where:

• MA[i] – the current value of the moving average;  
• MA[i – n] – the value of the moving average that is separated by n periods
  from the current value of the moving average
  average.

• Period – the period of the moving average; Method – the smoothing method (Simple, Exponential, Smoothed,
  Linear weighted);
• Applied Price – applied price (Close, Open, High, Low, Median,
  Typical, Weighted);
• Displacement – the displacement of the moving average from one period to another selected period (in the
  above formula Displacement = n).

Note: if the Displacement is less than 1
or more than a Period, then
a warning (Alert) will appear: “Incorrect
Displacement value. Indicator will use value Displacement=Period ” – ” Error of the Displacement value. The indicator will use the value Displacement=Period”.