A local quick-service restaurant forecasts the weekly demand for its signature sandwich Assume the forecast demand for the fourth week was 895 sandwiches Alas, the actual demand for the fourth week was 854 sandwiches. Calculate the forecast error, As part of your calculation, please show all of your work including 1. Formula used 2 Numerical values used in the formula 3. Final (calculated) forecast error, Asif doing so for someone not familiar with operations or business management explain the concept of e-procurement Indude in your explanation an applicable example that illustrates the important role that e procurement has vis-a-vis B2B and B2C