@dogmeat, workbench has an excel spreadsheet of all the reservation cards sold for each game. Best Practice is to look at the excel sheet for each new launch and hold that amount of games for 7 days. Anyone coming in redeeming a card gets on of those games. After 7 days they get put back with the rest.
As far as ps4 and Xbox one, all stores will only receive the amount to cover presale cards. This info is also found on workbench. All xbox ones and ps4s at launch will be for presales only.
If you are looking for this info at work, log into workbench, salesfloor, electronics, "video game reservation program". Hope this helps.