Combining budget pools based on hourly and annual values - is it possible?

Summary:

So we have a workforce compensation plan for some of our non-exempt hourly employees that have a salary range (min-mid-max). I have a Merit Component that is an hourly increase amount for their hourly salary rate. If someone is at the maximum of their salary range, we want them to still get an increase but we pay it out as a lump sum payment. So I have a second component 'Lump Sum Payment' (which is a % of their annualized salary amount) that updates an element instead of the employees salary.

The problem is that I have one budget of a certain % and my Compensation team wants me to provide one budget amount - but I haven't found a way to do that with one component being an hourly amount and one being an annual/lump sum amount.