I've only had 7 sales since being activated for Managed Payments.

Here is the comparison of old fees vs new fees:

Sale       PP Fee      eBay Fee      Total      Difference      MP fee
$16.95   -$0.74         -$1.59          -$2.33    $0                   -$2.33
$17.95   -$0.77         -$1.69          -$2.46    $0.02              -$2.44
$11.45   -$0.6           -$1.08          -$1.68    $0                   -$1.68
$20.95   -$0.84         -$1.97          -$2.81    $0.01              -$2.8
$11.95   -$0.61         -$1.12          -$1.73   -$0.01              -$1.74
$16.95   -$0.74         -$1.59          -$2.33    $0                   -$2.33
$18.5     -$0.78         -$1.74          -$2.52    $0.01              -$2.51

Totals
$114.7    -$5.08        -$10.78        -$15.86  $0.03            -$15.83

So far I am seeing a saving of $0.03