Please kindly clarified me what the meaning of 'Club level' as shown in the 'overview' tab of profile of a club. I just noticed that some of the other clubs of my league were 1 level higher than me.

In the past, I thought that 'Club level' of clubs in the same league are the same and the level will advance for 1 if a club is promoted. Probably, I misunderstand this. I feel confusing now.

Thanks for any advice in advance.