If the board restores a rejected probationer to his or her position it shall direct the payment of salary to the employee for such period of time as the rejection was improperly in effect.

Salary shall not be authorized or paid for any portion of a period of rejection that the employee was not ready, able, and willing to perform the duties of his or her position, whether such rejection is valid or not.

There shall be deducted from any amount approved under this section any compensation the employee earned or might reasonably have earned in private or public employment during the period the rejection was improperly in effect.