Hi Mengfang
I knew there must be a nuance in there somewhere with the Agency goal seek
method, but as with most of the CLEA black box, its hidden away.
A lot of the time, even with the 50% rule the sum of inverse equation does
seem to work.
And thanks for the the equation - will should prove very useful (once I get to
grips with it !).
Time for a coffee!.
Many thanks
Chris Dainton
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