Massaging data to determine risk

[DouglasinHawaii]

In range of data I need to find jthe largest numerical movement in one
direction without (x) retrace. (x in this case being a specific whole
number) Please help with a formula or direct me to where I could find this
information.
Using Excel 2007
For example: in range of numerical data, the largest directional integer
movement was 300 before the data moved 25 in reverse.
Example 2: In data the largest directional integer movement was 224 before
the data moved 30 in reverse.

 

[Gary''s Student]

Let's say your data is in column A, in B1 enter 0, in B2 enter:

=IF(OR(B1=-1,A2<A1),-1,A2-A1) and copy down, In an un-used cell enter:

=MAX(B:B) your desired answer. For example:

1 0 3
2 1
3 1
6 3
7 1
9 2
8 -1
12 -1
100 -1
114 -1

The maximum single step increase is 3 before the downturn.

 

[DouglasinHawaii]

Gary,
Thanks for the reply.
However perhaps a bit of clarification is needed either by me or for you .
You solved for the maximum single step increase before the downturn.
I need to solve for the total increase or decrease before a fixed reversal.
(data ? down/up before a reversal of x.) (for example x = 25) (200 points
down before x)
It is possible that the data would have multiple instances of x reversal,
and I'd need to log each if possible.
(e-mail address removed)