### Math Dummy

Posted:

**Wed Mar 05, 2008 3:51 pm**I've tried several different ways to come up with the number 74 as being the extraction rate in the example below but I just can't seem to figure out how that number was attained.

I tried 44 times 1.50 times 84% but that doesn't work.

What is used to get this number?

Listed BER is the base extraction rate of the harvester. The actual BER will depend on expertise, entertainer buff, and resource concentration when placed.

The formula is:

BER * (1 + expertise bonus + entertainer buff) * 1.50 * concentration

The 1.50 is a bonus to harvesting that the devs gave us when they took away the ability to have multiple admins on a harvester.

The entertainer buff is .01-.05, the expertise boost .15 or .30.

So a fully buffed trader with harvester expertise places a 44BER harvester on an 84% concentration. The actual extraction rate would be 74.

I tried 44 times 1.50 times 84% but that doesn't work.

What is used to get this number?

Listed BER is the base extraction rate of the harvester. The actual BER will depend on expertise, entertainer buff, and resource concentration when placed.

The formula is:

BER * (1 + expertise bonus + entertainer buff) * 1.50 * concentration

The 1.50 is a bonus to harvesting that the devs gave us when they took away the ability to have multiple admins on a harvester.

The entertainer buff is .01-.05, the expertise boost .15 or .30.

So a fully buffed trader with harvester expertise places a 44BER harvester on an 84% concentration. The actual extraction rate would be 74.