Obviously.
But is that annual revenue? Monthly revenue? Weekly? Hourly? Should the sign be displayed on a video screen that is connected to the cash register so it can be updated in real time?
If a county has a blue law that bans alcohol sales on Sunday, can the business use a different sign on Sunday than the rest of the week?
(Doesn't really matter to me; this is Texas' law, not Florida's. But it seems sorta weird. You could be stone sober and drinking coffee in a 51% place, yet commit a felony for possessing a weapon; or you could be drunk in a 49% place and legal.)
More digging. Actually a great question to ask and a very poor assumption to make.
Summary on 51% rule decision: upon application for a TABC license to sell alcohol on premises or upon renewal, the commission determines whether or not the retailer will fall under the 51% rule, according to rules set forth by the commission. The applicant must provide any and all documentation requested by the commission in order to make the decision.
Summary on being intoxicated: prohibited no matter the location.
Full text Subchapter H, Tx Code 411:
Texas Alcoholic Beverage Code 104.06 – Monitoring of Gross Receipts
Current as of: 2016 | Check for updates | Other versions
(a) On the issuance and renewal of a license or permit that allows on-premises consumption of any alcoholic beverage the commission shall determine whether the holder receives, or for the issuance of a license or permit is to receive, 51 percent or more of the gross receipts of the premises for which the license or permit is issued from the holder’s sale or service of alcoholic beverages for on-premises consumption.
(b) The commission shall:
(1) adopt rules for making a determination under Subsection (a); and
(2) require a holder of a license or permit to provide any information or document that the commission needs to make a determination.
Full text Tx Penal Code §46.02 and 49.01:
§46.02
(d) A license holder commits an offense if, while intoxicated, the license holder carries a handgun under the authority of Subchapter H, Chapter 411, Government Code, regardless of whether the handgun is concealed or carried in a shoulder or belt holster.
"Intoxicated" means:
(A) not having the normal use of mental or physical faculties by reason of the introduction of alcohol, a controlled substance, a drug, a dangerous drug, a combination of two or more of those substances, or any other substance into the body; or
(B) having an alcohol concentration of 0.08 or more.