Calculate the gross margin ratio for each of the following separate cases A through C: 
Definitions:
Board of Directors
A group of individuals elected to represent shareholders and oversee the management and operations of an organization, making strategic decisions.
Vroom's model
A theoretical model that suggests decision-making and leadership styles should be adapted based on the situation and characteristics of the followers.
Decision Making
The method of selection by recognizing a decision, assembling data, and examining various alternatives.
Goal Clarity
The extent to which the objectives or desired outcomes of a task or project are clearly defined and understood.
Q41: The reliability of the gross profit method
Q68: An income statement that includes cost of
Q81: If a company provides services to a
Q96: If cash was incorrectly debited for $100
Q105: A classified balance sheet organizes assets and
Q167: Wellington Company had sales this year of
Q181: The first step to get from transactions
Q187: The consistency concept prescribes that a company
Q232: If Regent Tax Services' office supplies account
Q236: The aim of a post-closing trial balance