well the prices are decent but these days u can get 1-249m for a flat price of $0.80/Mill and you only offer that for over 1bill orders, id suggest lowering your prices if you want more sales, but if your not in a huge rush to sell your stock those prices are fine
If you're a highly trusted seller you'd still be able to sell gold at a minimum of $1/1m. I've seen a PB shop selling at like $1.10/m and they get a lot of customers because it's a sticky thread, that is highly trusted. But your prices you have now are fine.