How many wins are 300 Wins? To put that number into perspective, note that since coming into the league in 1962, the Mets have won 3,470 games. So 300 wins is 8.6% of all the wins the Mets have ever won, in the history of the team.
Similarly, consider 756 home runs. The Mets, from 1962 to yesterday (the team's entire 45+ year existence), have as a team hit 5,950 home runs. 756 homers is 12.7 % (just about one-eighth) of all the home runs hit by all members of the Mets ever in the history of the franchise.