Losing pay to step down

I’ve been a department manager for years over TLE, (automotive). When my title changed to team lead a couple years ago, I did not get a pay increase like the others did in 2020, when team lead became active for the first time. But if I were to step down due to family issues I’ll lose 10% in pay. A pay I didn’t not receive to be a team lead. How is that fair? When I became department manager years and years ago I may of received $1 to $1.50 . It's been so long ago, I don't remember. But it definitely wasn't $2. I understand losing some pay due to less responsibilities but I didn’t receive the $2 raise like other DM’s did to step up to become TL’s. I have many many years as department manager and team lead experience. I will still bring my experience with me in any position I do. But I don’t think I should lose nearly $3 an hour. I don’t think it was fair they just changed my title from DM to TL with no pay increase.