# Taking a decibel to be an increase in pressure of 12.2%, by what factor has the...

###### Question:

Taking a decibel to be an increase in pressure of 12.2%, by what factor has the pressure changed when the sound level has fallen by 3.00 decibels?

I have seen this question asked before, but I always see 2 answers (percentages). Please indicate which one is correct, or if there is a value for the factor, indicate that instead.

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