GGroceries R Us (GRU) is a nonprofit organization that provides grocery deliveries to elderly clients once per week. They currently reimburse their volunteers for their mileage, averaging $3 per delivery (75 deliveries per week). There are 10 volunteers who deliver one day per week to 75 clients. Each client receives a bag of groceries that are provided at a discount from a local grocery store. The cost to GRU is $25 per bag. GRU also has a warehouse where they accept donations of non-perishable food that they add to the deliveries. The fixed monthly expenses for the warehouse and staff is $5,000. GRU is currently having trouble finding delivery drivers, so it has decided to increase the mileage reimbursement to $5 per delivery. How much MORE will GRU need to get in donations to cover this additional cost?