Can someone suggest a good online resource for learning how to run a restaurant?

I was arguing with my business partner about raising prices when I found a forum post with this link attached. The opening line about working 70-hour weeks just to stay afloat hit close to home for an ENG pub owner. What interested me was the straightforward explanation of the food costing formula. I always guessed my margins based on the price of meat, ignoring garnishes. I am genuinely satisfied with the real examples they walk you through. It stopped me from blindly raising prices and showed me exactly how to determine what I should actually charge for each dish. It puts control back in your hands. Go to https://restaurant.eatapp.co/blog/how-to-calculate-restaurant-food-cost before you have another pointless argument about menu prices with your co-owner.