The demand and forecast values are shown in the table below: 
The forecast error for September is
Definitions:
Wages and Salaries
Monetary compensation paid by employers to employees for their labor services, typically on an hourly, weekly, or annual basis.
Redistribution of Income
Economic policies or mechanisms intended to adjust the distribution of wealth or income in a society.
Income Equality
Income equality refers to a scenario where earnings are distributed evenly across a population. It is the opposite of income inequality where earnings are unequally distributed.
Economic Efficiency
A measure of how well resources are utilized and allocated to maximize productivity and meet the needs and wants of society.
Q23: When demand fluctuations are extreme, using overtime
Q24: What is aggregate planning and what alternatives
Q42: Distribution includes all of the following activities
Q46: A forecasting model has produced the following
Q63: Package carriers mostly use the following mode(s)
Q88: As part of a time study a
Q92: Given the following MRP matrix for Item
Q112: Sharing information and synchronizing production across the
Q113: Studies have shown that the success of
Q116: The following information relates to a company's