A tourist spot in Bali generates significant sales from the sale of unique Balinese souvenirs that can only be found in this tourist spot. This souvenir is usually made seasonally and in accordance with the thematic that is happening in Bali at that time, so that many foreign tourists are always looking for their newest collection every time they visit these tourist attractions. The cost for the souvenir is $ 0.8 per item with a selling price of $ 7.00, and usually sells up to 100,000 pcs. In order to conduct a market test, the tourist spot increased its selling price to $ 8.00 which resulted in a decrease in sales to 85,000 pcs. Question: 1. Which is more profitable selling a $ 7.00 or $ 8.00 souvenir 2. Calculate the elasticity of demand for the souvenir 3. Calculate the maximum profit for the souvenir 4. If the wiasata shop increases the cost of the souvenir to $ 1.00 per pcs, what is the selling price of the souvenir that is most likely for the customer.