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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def scaleField(self, scalingFactor):
 """ Adjust the accelerating field of the cavity by the value of ``scalingFactor``. The adjustment is multiplicative, so a value of ``scalingFactor = 1.0`` will result in no change of the field. """

        oldField = self.fieldReduction.val
        newField = 100.0 * (scalingFactor * (1.0 + oldField/100.0) - 1.0)
        self.fieldReduction = self.fieldReduction._replace(val = newField)