[TerenceLau]

What is the word for hem or hemming? How would you say "our store doesn't have a hemming service" or something similar to that regard?

For tonight the shopping mall is having a fashion event. My store is giving out 40% off of the most expensive regularly priced item (within the transaction), then 25% off for the rest of the regular price items.

Here's my take on it. Please lend me help correcting my sentence and making it natural sounding. I'd much appreciate if you could provide any easier way of conveying the message.

一番高い正価の商品が４０パーセントを割引していただ けます。その他の正価の商品が２５パーセントを割引し ていただけます。