Percent 10 and Hi-Lo ratio

[bbj@xxxx]

Help!
Could anyone create a code to calculate %10 and Hi-Lo ratio.
description of %10 ,
Calculate the amount(AM50) of stocks whose C is above the 50ma in a 
specific sector(TM), and then calculate AM50/TM. After this draw it 
into a chart.

AM50= total amount of C> ma(C,50)
TM= total amount of the stocks in a specific group or sector.

%10 = 100*AM50/TM

description of Hi-Lo ratio,
(Amount(HM) of the stocks whose C is the 1yrHigh )/ (the sum of the 
amount of the 1 yrHigh and 1yrLow(LM))

Hi-Lo ratio = 100*Hm/(HM+LM)

These two indicators are useful in predicting the Index moving 
direction.

Thanks a lot.
CC Chen