Final answer:
The purpose of developing a master budget for a merchandising organization like Peyton Department Store is to manage cash flow, allocate resources, and determine profitability.
Step-by-step explanation:
The purpose of developing a master budget for a merchandising organization like Peyton Department Store is to manage cash flow and ensure a minimum cash balance. By creating a budget, the organization can plan and allocate resources for a specific period, such as the second quarter of 2010. Additionally, the master budget helps calculate operating expenses and determine profitability, allowing the store to make informed financial decisions.