Bandas de MANCUSO

The lower band is calculated by taking the average of the minimum prices over the last ten days, minus the average range of the last three days multiplied by two.
The upper band is derived from the average of the maximum prices over the last ten days, plus the average range of the last three days multiplied by two.
The middle band is calculated as the average between the upper and lower bands.

This middle band serves as a buy or sell signal, depending on the direction in which the price crosses it.
The upper band acts as an upward target, and the lower band as a downward target.

The average range that is added to the upper band and subtracted from the lower band (multiplied by two in both cases) is calculated by averaging the ranges of the last three days.
Each daily range is obtained as the difference between the high and the low of each day. These three values are then averaged and applied as described above.