24,930
It's fairly easy to know whether you're right or wrong. Above your post it will tell you the reply amount, the correct number is one more than that reply count on your post
(This is because of how replies work. The reply count starts at zero while the count to a million starts at 1. So 1 was at reply 0, 2 was at reply 1, etc.)
2 + 4 - 9 + 3 = 0