Question on Salary and payout

So I've been making a table so I can quickly figure out job payments but I'm trying to figure out how to calculate it.

In the player guide it says to pay 500 for every trained skill, 1000 for every expert skill and 2000 for every master skill. Is that the cumulative skills that all players have? So for example if one player had 2 trained skills and another had 3 would it then be 5*500?

Also would that end payout then be split amongst the group or given to each player?

I've done a bunch of one-shots but just starting a campaign so want some solid ground before I factor in living expenses and such!