Exhibit 8-1 
-Refer to Exhibit 8-2.Based on the given change,what word (rises or falls) should go in blank (11) and blank (12) ,respectively,to summarize the resulting impact on short run equilibrium?
Definitions:
Sales Returns
Transactions where customers return previously purchased merchandise, leading to a reversal of revenue.
Cost of Goods Sold
The specific costs incurred in the production of a company's sold merchandise.
Gross Margin Ratio
A measure of a company's financial health, calculated as gross profit divided by net sales, showing the percentage of sales revenue that exceeds the cost of goods sold.
Perpetual Inventory System
An inventory management method that records the sale or purchase of inventory immediately through electronic tracking.
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