PTU DC calculations

DC 4 - 90%+ success rate at untrained or higher, 50% success rate at pathetic

DC 6 - 90%+ success rate at novice or higher, 72.22% at untrained, 16.67% success rate at pathetic

DC 8 - 83.8% success rate at novice, 41.67% at untrained, impossible at pathetic

DC 10 - 84.1% success rate at adept, 50% at novice, 16.67% at untrained

DC 12 - 90%+ success rate at expert or higher, 76.08% at adept, 37.5% at novice, 2.78% at untrained

DC 14 - 84.8% success rate at expert, 55.63% at adept, 16.2% at novice, impossible at untrained

DC 16 - 90%+ success rate at master, 69.48% at expert, 33.56% at adept, 4.63% at novice

DC 18 - 79.42% at master, 50% at expert, 15.9% at adept, less than 1% at novice

DC 20 - 63.69% at master, 30.52% at expert, 5.4% at adept, impossible at novice

DC 22 - 45.43% at master, 15.2% at expert, 1.16% at adept

DC 24 - 27.94% at master, 5.88% at expert, less than 1% at adept

DC 26 - 14.46% at master, 3.24% at expert, impossible at adept

DC 28 - 6.08% at master, less than 1% at expert

DC 30 - 1.97% at master


The below checks indicate when the previous rank is unable to make the DC at least 50% of the time.

Untrained check - DC 5

Novice check - DC 8

Adept check - DC 11

Expert check - DC 15

Master check - DC 19