the value of goods, services or works supplied to the person by the authorities or other persons, as a percentage of the total value of goods, services or works supplied to the person.
gwerth nwyddau, gwasanaethau neu waith a gyflenwir i'r person gan yr awdurdodau neu bersonau eraill, fel canran o gyfanswm gwerth nwyddau, gwasanaethau neu waith a gyflenwir i'r person.