An accrued interest number shown on 2024 schedule B, but no source I can review the correct data!

I input accrued interest in Turbotax.  It does respond and showed on Schedule B in 2024.   However, I want to find out how they arrived with that number.  It not show me anything.  When I back check my 1099-INT,  it is not there either.   I input the accrued interest through the path of "interview"  and it was accepted by the program.