They collected $250 from Bronze Status families because 10 times 25 equals <<10*25=250>>250.
They collected $350 from Silver Status families because 7 times 50 equals <<7*50=350>>350.
They collected $100 from Gold Status families because 1 times 100 equals 100.
Therefore, they collected $700 thus far because 250 plus 350 plus 100 equals <<250+350+100=700>>700.
They need to collect $50 more because 750 minus 700 equals 50.
#### 50