The relationship between power and sound level is logarithmic, following the logarithmic scale of the decibel (dB). The decibel scale is a relative measure of sound intensity or power level. A change of one decibel represents a ratio of power, not a fixed amount.
To provide a general understanding, a 1-decibel change corresponds to approximately a 26% increase or decrease in power. This means that to increase the sound level by 1 decibel, the power must be increased by about 26%. Similarly, to decrease the sound level by 1 decibel, the power must be decreased by approximately 26%.
It's important to note that this 26% approximation is based on a logarithmic scale and represents a rough estimate. The actual power increase or decrease required to achieve a specific change in decibels depends on the starting power level and the reference point used for the decibel calculation.