I am using goal seek to solve for a desired IRR ("To Value") by modifying the
initial cash outflow ("By Changing Cell") that is followed by a fixed series
of cash inflows. The values I input for IRR are whole % (ex. 15.0%, 30.0%,
etc) however, the resulting IRR that is calculated through goal seek is never
a round number. In most cases, it will round to my desired result but
occasionally it will leave me off by 0.1% (rounded). Anybody know why the
result doesn't equal the exact number i enter in the "To Value" field?

Thanks
Curt