50% sounds more than 30%, but remember that your revenue is half (or less) of what it used to be. So please measure your labor each day and take immediate action. If you did $2,000 in sales today, only spend $1,000 on labor tomorrow. It's rough, but everyone else has to get cut. Rotate through cuts in staff so everyone can take the pain equally.
Step 3. Do not pay any bills that you do not have to.
That means your electric bill, for example. It's going to be a long time before they shut off your power for non-payment and you need that money now to get through this. When you get a demand notice, call the companies and ask for a reprieve. At some point, when business returns to normal you might have some late fees to pay, but the good news is you'll be around to pay them.
Step 4. Call any creditors and ask them if you can defer your debt payments.
Do not avoid them. They'll understand and work with you. More than likely they'll ask you to pay interest only payments, or no payments at all with interest still accruing. If you have a merchant cash advance which takes money directly out of our point of sale (like a Square Loan or a Toast Loan) call them right now and ask them to reduce their payments. If you have daily or weekly automatic payments, call the creditor and ask them to pause the automatic payments. They would rather you survive.
Step 5. Don't order any more alcohol.
Sell what you have in stock and replenish only what you have to. Again, preserve cash as much as possible. But make sure you pay your food vendors because if they stop delivering, you go out of business.