This page calculates which raiders have attained sufficient attendance on those days for which they are rostered and the portion of the coin split to which they are entitled.
Select the start and end dates from the following form, enter the amount of coin to be shared, enter the minimum percentage of rostered attendance required in order to be included in the share, and then click the button to perform the calculation.
There are no helpful messages to tell you if a mistake was made. If you do not enter a pair of valid dates and non-zero values for the amount of coin and the eligibility percentage, very little will happen.