See the pattern here
$5.60
$6.20 $7
$4.65
$5.10
$4.50 $5.10
$4.30
$5.30
$6.50
$6 $7
$6.30 $7.50
$5.30 $7.50
$6.10 $7.50
$7.50 Sold Out
$6.20 $7.50
$19.30 $25
$10.70