How to Determine Salary Differential as a Title I Set-Aside A District may elect to calculate salary differentials in order to avoid salary inequities in allocations among individual schools. The election will cover the entire term of the grant and must be applied consistently to all Title I staff across the District. This method requires a county established base salary for each different position (BA +0 years.) The aggregate total salary differential will then be included on the County Level Administrative or Other Set-Aside in the consolidated application.