Combat Tables

For example:
A level 1 fighter, swings at a level 1 goblin with 6 armor class.
The fighters base chance to the goblin is 49%.
(5% + (50 - 6)%) = 49%

By the same argument:
A level 1 fighter, swings at a level 1 goblin with 56 (wow!) armor class.
The fighters base chance to the goblin is 11%.
(5% + (50 - 56)%) = -1%
The mininum to hit though is 1%, so anything less than 1% becomes 1%.

A one (1) is ALWAYS a hit (and also a critical hit) while a 100 is ALWAYS a miss.

Table shows the chance to hit (without stat adjustments) an opponent of the same level with an armor class of 50.