See the pattern here
$7
$5.10
$5.70
$7.40
$10.70
$13.40 $14.90
$13 $14.90
$9.30 $10.70
$13.50
$5.60
$7.50
- $5.60
$6.10
$9.80
$5.60 Sold Out
$5.60 $6.50
$4.20
$5.20
$4.30
- $4.65