Approval Rule - Two Approvers in Same Job Level

Summary:

We need to build our approval rule such that if a salary change is between 0-10% it goes up the hierarchy path to manager but 10-15% goes up the hierarchy path to senior manager. We wanted to do this using job level. However, both manager and senior manager have the same job level. Is there a way to configure the rule such that 0-10% gets to level 50 and stops but 10-15% gets to level 50 and includes all participants in that level? Or is there a way to get to level 50 and require 2 levels of approval. For