Eikaiwa Instructors: How many lessons does your eikaiwa offer in an academic year?

Heya, eikaiwa instructors. Just wanted to ask about the above.

My previous workplace had a guaranteed 43 lessons per academic year. Another one had 45 lessons. A friend is now working at an eikaiwa that offers 48 lessons per year. They could suggest lowering the lesson count to 45 but need to justify it to the Japanese owner and of course, there may be reactions from parents regarding monthly fees etc.