Costing

House Co also plans to manufacture 90 sofas in june. Below are some extracts from the cost card for a sofa.

Materials- 10m^2 of fabric @$50 per m^2. =$500

Assembly labour- 8hours @$15 per hour =$120

How many metres of fabric should be purchased if 10% of material is wasted during the production process?

Sir i know required for production is 900m^2 {90×10)

But in kit they’re adding waste =100 from where is this coming from 10% of 900 would be 90, also why we adding it with usage it’s like normal loss which we deduct from input to find output, please explain this sir