Dark burgundy UK passport lost near Manchester Arndale

I lost my dark burgundy UK passport yesterday around 3pm outside the Manchester Arndale on Market Street, near Primark. It's a standard UK passport with the royal crest on the cover, and there's a small crease along the bottom corner and a coffee ring on the back. Inside, there's a tiny sticker with my initials 'AR' placed on the inside cover. This passport means a lot to me—it's my only document for a trip next week to visit family, so I really need it back.