I'm confused.

Okay so I pulled up my score details and for the math section I got 46/60 correct which gives me a raw score of 27. Why did I get a 22? Is it a glitch or something? Also for reading I got 30/40 which correlates to a 25 raw score but I got 27? I'm very confused can someone please explain thank you in advance

Okay so I pulled up my score details and for the math section I got 46/60 correct which gives me a raw score of 27. Why did I get a 22? Is it a glitch or something? Also for reading I got 30/40 which correlates to a 25 raw score but I got 27? I'm very confused can someone please explain thank you in advance