Any thoughts on Muscle or Lean Body mass numbers?

My doctor has a fancy scale that has arms you hold, after weighing you it measures your body statistics.  Below are my some of my stats.

September 2011

Height = 6'0"

Weight = 358.5

Lean Body Mass = 189.6

Body fat mass = 168.9

BMI = 49

Body Fat % = 47.1

Pants Waist = 52

Shirt Size = 2-3xl

At my check up in April 2012 my stats are as follows

Height = 6'0"

Weight = 234.6

Lean Body Mass = 181.7

Body fat mass = 52.9

BMI = 31.8

Body Fat % = 22.5

Pants Waist = 36

Shirt size = L-XL

The report stated I could benifit from loosing 24 more pounds.  I do have a little excess skin below my belly button and my upper thighs and butt but don't know if that tissue is counted as fat in the analysis.  I intend to get to around 210 to 215lb and be below 20% BF according to this machine by my next checkup in April.

hope this helps