OK, lets talk Home Products Then just to compare $200 - $300 items.
Exterior Doors sold at Lowes and Home Depot are marked up about 20-30%, BBQ Grills ... about 20-30%, Lumber 12-20%, Power Tools... about 20-30%
Then the opposite.... hardware like bolts, hinges, nails, locksets, plumbing fittings 100% +++
This comes from a Friend who Manages a Home Store.