(NOTE: ENTER YOUR ANSWER WITHOUT COMMA, ROUNDED TO THE NEAREST TON, for instance as 5824, not as 5,824.24. Do not round intermediate calculations!) Tri-State Logistics is looking to purchase a new unloading robot for one of its sites. The choice is between machine A and machine B, with both machines lasting 6 years. Machine A would cost $63,000 to purchase, its operating cost would be $419 per ton of material unloaded, and it would be sold for $23,000 at the end of the 6 years. Machine B would cost $92,000 to purchase, its operating cost would be $220 per ton of material unloaded, and it would be sold for $42,000 at the end of 6 years. Assuming 3% interest rate, calculate the minimum annual number of tons of material unloaded, that would be required to choose machine B over machine A