If you would like to make that arrow *more prominent*, you might try
formatting C1 to the
WingDings font, and use this *array* formula in C1:
=IF(--RIGHT(B1,6)=MAX(--RIGHT($B$1:$B$7,6)),CHAR(239),"")
--
Array formulas must be entered with CSE, <Ctrl> <Shift > <Enter>, instead of
the regular <Enter>, which will *automatically* enclose the formula in curly
brackets, which *cannot* be done manually. Also, you must use CSE when
revising the formula.
*After* the CSE entry, copy down to C7.
*TAKE NOTE*
For this formula to work, your percentages must *not* exceed 99.99% (6
characters).
Changing the formula to 7 characters would bring the "dash" into the
calculations as a minus sign when you have single digit percentages.
*BTW*
You have a typo in your Column K references in the formula you posted!
Second - Do you really need so many rows for your calcs?
The formula could be made a little shorter using Sumproduct(), but *not* at
those ranges you're now using.
If you could live with a much smaller range, you might try something like
this:
=TEXT(SUMPRODUCT((H20:H2000=TODAY()-WEEKDAY(TODAY(),3)+5)*(I20:I2000+K20:K2000)),"$
#,##0.00")&" -
"&TEXT(SUMPRODUCT((H20:H2000=TODAY()-WEEKDAY(TODAY(),3)+5)*(I20:I2000+K20:K2000))/$C$9,"0.00%")