Final answer:
To assess the effectiveness of promotional sales over three periods, analyze sales volume, revenue, profit, and customer data, and compare the changes between Q2 and Q3 to identify the largest shift. Creating a table for clear visualization and comparison can be very helpful.
Step-by-step explanation:
To assess the effectiveness of promotional sales over three periods and identify the largest change between Q2 and Q3, it's important to analyze key metrics such as sales volume, revenue, profit margins, customer acquisition rates, and possibly customer feedback.
For example, if the promotional sales in Q2 generated a 20% increase in sales volume but a decrease in profit margin due to deep discounts, and Q3 saw a 10% increase in sales volume with a higher profit margin due to a more targeted promotion, the effectiveness could be deemed as improved in Q3 despite the lower sales volume increase. This is because the company increased its profitability while still maintaining growth in sales.
Meanwhile, to identify the largest change between Q2 and Q3, we can compare the data from both quarters on the various metrics. If the sales volume in Q2 was 100 units and in Q3 it was 150 units, the change is 50 units, which is an increase of 50%. Similarly, all other metrics should be compared in the same manner to determine which had the largest shift.
It would be advantageous to create a table showing these changes to visualize the data more effectively, which will also assist in conducting a more comprehensive assessment. This would require collecting data on sales, costs, and customer-related metrics across both periods.