Whuuups. Bad math. I knew that didn't look right. 58 is 72.5% of 80, so it's a 27.5% drop. Quick and dirty would tell you that 60 is 25% down, so I shouldn't have even needed a calculator to figure that one out and get closer than I did.
Still not stellar. I'd dicker over the condition of that engine... Mark Langford ML at N56ML.com website www.n56ml.com