Office clothes are not a mixed load and pricing them by weight is how a laundry ends up pressing a shirt for four rufiyaa. These are counted rather than weighed.
Twelve for a shirt washed and pressed, eighteen for trousers, twenty five for a full length dress, thirty for a jacket. Collars and cuffs are done by hand before the press.
We hang them rather than fold them and the rider brings a rail, which is the whole reason people move their office clothes to us. Say on the form if you would rather have them folded flat for a suitcase.