$6.10 X 2 = $12.2 - $29.36
$6.7 X 2 = $13.4 - $30.96 (14%)
$12.76 X 2 -- $52.16 (14%)
$13.46 X 2 -- $49.26 ($9.46 X 2)
$10.92 X 2 -- $42.36 (14%)
$17.12 X 2 -- $59.15 (4.4Kgs X 2.2)
$14.59 X 2 -- $52.30 (4Kgs)