$5 or less, why you must bundle

I require items $5 or less to be bundled due to poshmark base fee for selling on here ( which increases with the amount of the sale) which is deducted first, then I have wrapping supplies, gas to the post office, free gift, & finally my time and on a $5 sale leaves me at $0 or less as my profit. so its easier to take items to Goodwill than to sell, so I require those items $5 or less to be bundled with Additional items to purchase. I appreciate your understanding of my policy. I'm here to sell so BUNDLE up and shoot me an offer THANK YOU!!!!!