Since you're new, be sure to have a look at the Metastock Formula Primer.

It can sometimes be helpful to plot the condition you're describing; if you create a custom indicator and plot it in the same window as the security, you can SEE when the close is above the range:

{_My Indicator}
RangeLow:=LLV(C,252);
RangeHigh:=HHV(C,252);
Range:=RangeHigh-RangeLow;
RangeLow+Range/2;


The code as you defined it is BINARY, so you may want to plot it either in a separate window, or use the "Overlay without scale" option.

1. C<ref(C,-1) and ref(C,-1)<ref(C,-2); { Binary }


2A. This can be done simply:

C>LLV(C,252)+(HHV(C,252)-LLV(C,252))/2; { Binary }


2B. A more readable version (same as 2A. above):

RangeLow:=LLV(C,252);
RangeHigh:=HHV(C,252);
Range:=RangeHigh-RangeLow;
C>RangeLow+Range/2;


If you were planning on combining 1. and 2., a simple version would be:

C<Ref(C,-1) AND Ref(C,-1)<Ref(C,-2)
AND
C>LLV(C,252)+(HHV(C,252)-LLV(C,252))/2