2,267.9g is more precise than 2,268 g becasue it is providng the actual number, with decimals. It is providind the most accurate weight, showing that it's just a tiny bit less than 2,268 g, but still has the exact weight. 2,268g on the other hand, is rounded up which is also good in some scenarios, but it's not as accuracte/precise as the exact amount of something.
