5% extra qauntity while creating purhase requisitions

Hi Team,

we are sourcing some items from different countries and to avoid some breakage, we need to apply 5% extra quantity in every PRQ's? how can we do it? i know we have option in MRP4 component scrap but if we enable that option, while doing consumption , system will dot automatic cunsumption for 5% as well...is there any option ?