Jennie Heckman Cleary

I have a new 2019 Camry hybrid. The car has a 13 gallon fuel tank, and the car is averaging 46.5 mpg. The readout on the display says the driving range is 494 miles. Based on the miles per gallon and the fuel tank capacity, after a fill up the car should have a driving range of about 600 miles, not 494 miles. The EPA estimate of driving range is 676 miles. I don't expect to get the EPA estimate, but I don't understand why my readout says only 494 miles, when given the mileage I'm getting, it should read about 600 miles. Is anyone else noticing a discrepancy with their hybrid? My 2014 Camry hybrid displayed the correct driving range. This new one seems way off. I took it back to the dealer, and they just brushed me off and said those things are not perfect.