(Figure: Upperia's Production and Consumption) The graph shows Upperia's international trading pattern. What is the autarkic relative price of shirts in Upperia? 
Definitions:
Related Revenues
Income that is directly connected to the primary operations or activities of a business.
Revenue
The total income generated by a business from its normal business operations, such as sales of goods or services.
Earned
Income or revenue that has been generated from business activities or services provided.
Cash
Money in the form of coins or banknotes, especially that used to operate a business.
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