Rewrite Program 100 so that two input values are provided to the function: the sound and a percentage of how far into the sound to go before changing from increasing to decreasing the volume.
What will be an ideal response?
```
def increaseAndDecrease2(sound, percentage):
for sampleIndex in range(0,getLength(sound)*percentage):
value = getSampleValueAt(sound ,sampleIndex)
setSampleValueAt(sound ,sampleIndex ,value * 2)
for sampleIndex in range(getLength(sound)*percentage,getLength(sound)):
value = getSampleValueAt(sound ,sampleIndex)
setSampleValueAt(sound ,sampleIndex ,value * 0.2)
```
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