See the pattern here
$19.80 $25
$11.10 $15.90
$19.10 $32
$8.60
$3.80
$2.75 $3.20
$9.30
$16.50 $24
$24
$23
$3.05
$22 $30
$2.10 $2.85
$28
$2.05 $2.75
$27
$25
$2.90 $3.20
$3.30
$4.65
$4.85 $5.60
$4.55 $6.10