I'm confused regarding the new profitability after removing the 3 prep items, even though the new profit margin is 1323 USD, if you go back and calculate the new total revenue and new total profit, it actually increases for the restaurant.
Example: old revenue total: 4940 and old profit total: 3540 (profitability: 71%)
New revenue total (removing 3 prep items): 4130 and new profit total: 3378 (profitability is 81%)
The case concludes that removing these items will not help profitability... which is not the case