
Grigg's 2013 transfer to the Bees saw a tribunal award Walsall £325,000 plus several add-ons, including £30,000 per appearance (for a selected number of games), and 20% of any future sale, and it's the 'sell-on' that has been clarified.
Early reports suggested that the club will receive 20% of the full fee, which is understood to be in the region of £1,000,000, however Smith has revealed that the club will get 20% of the difference, so all money above the initial £325,000 fee will be split 80/20 with the Saddlers expecting to get around £130,000, not the £200,000 which was previously believed.
The club's current policy is to split all fees received in half, with 50% going to youth development, and the other being added to the 'footballing budget'.