PS Slave --
The Accrue At field for a resource determines how Microsoft Project assesses
costs to a resource's task assignment. If you choose the Start option, the
system assesses the entire Cost of the assignment during the first minute of
the assignment. If you choose the End option, the system assesses the
entire Cost in the last minute of the assignment. If you choose the
Prorated option, the system evenly apportions the Cost across the entire
Duration of the assignment. For example, a $1,000 cost on a 5-day Duration
task would be assessed at $200/day. Hope this helps.