When self-employment income is sporadic or based upon commission, the projection of household income currently shall be based upon historical data unless:
(1) The household can demonstrate and verify that it has experienced a change in circumstances that is a reliable indicator that its income has decreased and that the historical data is not a reasonable basis for projecting household income; or
(2) Documentation indicates that the household has experienced a change in circumstance that is a reliable indicator that its income has increased and that the historical data is not a reasonable basis for projecting household income.
b. When self-employment income is sporadic or based upon commission and there is no record of self-employment from the last year in which tax returns were filed, the projection of household income will be based solely upon the reliable year-to-date documentation.