Sound intensity is the really damaging thing about loud sound to humans and wildlife. Sound measurements are on a complicated log scale, but the short of it is that sound intensity doubles with every 3-dB increase. But its not that complex. The Navy’s own data clearly states that Growlers, as they approach a landing, register at 114 dB compared with 107 dB for Prowlers. Given the log scale, that 7-dB difference expands to Growler noise being 4.33 times (433% of) as intense as the average reading for Prowlers.
On the other hand, loudness is a more qualitative measure of what people seem to hear, which is different from the actual sound intensity their full body experiences. Loudness, too, is on a log scale, such that a 10-dB increase in noise doubles the human perception of its loudness. So, again, looking to the Navy’s own data, the 117-dB they report for Growler takeoff registers at 1.3 times (133% of) the 114-dB loudness of a Prowler takeoff.