A project team has arranged to use recycled infrastructure components. Thirty percent (30%) by mass of the new material infrastructure components contain post-consumer recycled content. Ten percent (10%) by mass of the infrastructure is on-site reuse materials. What is the minimum additional percentage of recycled content (by mass) that must come from pre-consumer S materials? Calculator 66 67 68 A 0% 10% 20% 74 75 D 25%