A local petting zoo allows visitors to feed the goats food pellets. The petting zoo starts the month with 525.25 pounds of food pellets. Each week, the workers track the amount of food pellets given out and any food pellet deliveries. Week Change in Food Pellets (lb)
1 −16412
2 −189.75
3 35578
4 −200316

How many pounds of food pellets will the petting zoo have left at the end of the month? Write your answer as a mixed number in simplest form.