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150 were testtes while she only had funding for 1/2 that number, that means 75 which is how many there were.
the spartan 3 project only had 76 trainees , ther were 2 other projects for the spartans which is sort of said , failed
there were indeed 300 to start with but at the end of it all the training and the surgical enhancements there were only 76 left alive... many of who could no longer walk or function.
Spartan I, II, and III projects all put together. wich would probly add up to about 300 spartans