Vamp/example

An 12th generation Malkavian with 1 Dot in Generation is buying Dementation.

• Dementation 1 costs: 10XP.
  
• Dementation 2 costs: Current level (1) x In-clan cost (5) = 5XP.
  
  Now they want Dementation 3. Since 3 is greater than Generation Dots +1 (1+1=2) -- cost is doubled. So,
  
• Dementia 3 costs: Current level (2) x In-clan cost (5) x2 = 20XP.
  
  Dementation 4 also costs them double so,
  
• Dementia 4 costs: Current level (3) x In-clan cost (5) x2 = 30XP
  
  Now they want Dementatia 5. The desired level (5) is more than twice the value of Generation Dots + 1. That is to say that 5 is greater than: (Gen+1) x2 = (1+1) x2 = 4. 5 is greater than 4. So it will cost them 3x as much, instead of 2x as much. So,
  
• Dementia 5 cost: Current level (4) x In-clan cost (5) x3 = 60XP
  
  When in doubt you can ask staff or use the +xpcost <discipline>=<level> to help you figure out the costs.