Payment for my first run Options

[Grayson7]

Hello, tonight I am starting the first session of my shadowrun game. Basically, this run is going to be fairly simple because I am really more interested in me and the players getting used to the mechanics and the setting than anything else. The runners are expected to intercept a briefcase exchange between two parties. The opposition is not going to be all that tough. I am stuck on what to pay them, namely because there are three of them. I am using the 3rd edition Shadowrun Companion as a pricing guide (even though campaign is 4th edition). It list a base price (bottom line) for the job and in the text it mentions that the price does not take into consideration the number of runners. My question is, how much extra do you add per person on the team? Do you add a percentage of the base cost per person or do you just give each person the full amount?