Auto show blank if specific text is shown

[wenhua]

Fruits	:	Apple	1	box	$19.80	$  19.80
Fruits	:	orange	1	pcs	$2.30	$    2.30
Others	:	Minimum Charges	1	nos	$800.00	$800.00

Hi, 

i do i auto show blanket(those in orange) if i select minimum charges ( at any row)? 

Mean i could have 5 fruit but if the fruit does not cost more than $800 , i would only want to show the $800 the rest i wan it blanket . so that my total reflect only $800 and not $822.10.

[#2]

i had figured out ,
=IF(F30="Minimum Charges",O30*L30,IF(COUNTIF($F$21:$K$59,"Minimum Charges"),"",IF(L30="","",O30*L30)))