Thumb Score: +25

Costco offers Banana Republic Men’s Sweater Hoodie (3 colors) [costco.com] on sale for $17.99. Buy 3, save an extra $10. Buy 5, save an extra $35. Buy 10, save an extra $70.

1 for $17.99
3 for $43.97 ($14.66 each) – extra $3.33 off each
5 for $54.95 ($10.99 each) – extra $7 off each
10 for $109.90 ($10.99 each) – extra $7 off each

You can mix and match with other items from this sale [costco.com] to get the per item discount shown above