I missed that. I tend to swerve Manure tribute programmes.
Read an article regarding Adam Rooney from when he joined them and it was mentioned then.
It was also mentioned by the Peterborough Chairman at the time that DL was on £180k pa at Salford when they were a National League Club.
Assuming getting promoted would see a pay rise whoever wrote wrote the Rooney article would have estimated a wage of £5k as that was the wage of Rooney.