For Sale: Purina ProPlan Puppy food

My son bought a 47 lb. bag of Purina ProPlan Pupply food and our puppy ended up being sensitive to chicken so we had to switch foods. At least 40 lbs are left. The 34 lb. bag sells for $69.99 on Chewy. Hoping to get $50 / OBO so it doesn't go to waste. I'd donate it to Humane Animal Rescue but they don't accept opened bags. Stephanie