for example say you have 10 prayer bonus, what does it means towards your prayer points??

"Players have a prayer bonus. The higher the prayer bonus is, the slower the player's prayer points will drain, when using a prayer.

 

 

 

Each point of prayer bonus slows the drain rate by 3?% of the prayer(s) rate. A general formula for a prayer's drain rate with a given prayer bonus is:

 

 

 

modified drain rate = prayer drain rate × (1 + (3?% × prayer bonus))

 

 

 

Where the drain rates are the number of seconds per point (i.e. 1 point per x seconds).

 

 

 

For example, if a player uses Protect from melee with a prayer bonus of 0, their prayer points will drain at a rate of 1 point every 3 seconds. If that player then equips armour giving a prayer bonus of +15, the drain rate of protect from melee is slowed by 3?%×15=50%, so the drain rate becomes 3×(1+50%)=4.5, that is 1 point per 4.5 seconds.

 

 

 

A prayer bonus of +30 halves the drain rate of prayers - i.e. prayer points will last twice as long. "

 

 

 

(http://runescape.wikia.com/wiki/Prayer)

 

 

 

Hope that helps. :)

thanks very much, i tried doing calculations but i was off but .13 anyways thanks