The 553.29 oz of lamb shoulder will you need for 50 servings.
Initial stew meat needed:
40 oz of stew meat are required per 10 servings.
Therefore, 400 oz of stew meat are needed for 50 servings (40 oz/serving * 10 servings = 400 oz).
Trimmed meat needed:
You experience a 15% waste due to trimming.
This means that you need 15% more meat than the final amount of stew meat needed to account for the waste.
To calculate the amount of trimmed meat needed, we use the following formula:
trimmed_meat_needed = initial_stew_meat_needed / (1 - waste_percentage)
Plugging in the values, we get:
trimmed_meat_needed = 400 oz / (1 - 0.15) = 470.59 oz
Shoulder needed for 50 servings:
We know that 470.59 oz of trimmed meat are needed for 50 servings.
We also know that you experience a 15% waste due to trimming.
This means that you need to purchase 15% more shoulder than the amount of trimmed meat needed to account for the waste.
To calculate the amount of shoulder needed, we use the following formula:
shoulder_needed = trimmed_meat_needed / (1 - waste_percentage)
Plugging in the values, we get:
shoulder_needed = 470.59 oz / (1 - 0.15) = 553.29 oz
Therefore, you will need 553.29 oz of lamb shoulder for 50 servings.