Need to compare the difference of 2 attributes in Manage Salary (Approval Transactions for HCM)

Team,

We have 2 categories of employees- Hourly and Salaried. For Salaried employees, we are storing annual salary but for hourly employees, we are storing hourly pay rates. We want to write conditions (IF conditions) on the basis of difference of

PROPOSED ANNUALIZED FULL TIME SALARY and CURRENT ANNUALIZED FULL TIME SALARY.

Example - If the above is < 5000, then condition A gets executed

If above is > 5000, then condition B gets executed.

For this, we need the difference of the two attributes (i.e adjustment amount or change amount). We have an attribute of adjustment amount, but for hourly employees, it only gives change/adjustment in pay rate per hour. (note that we need annual even for hourly associates). Can you let us know if this is feasible?