Calculate the price elasticity in the problems below

The price elasticity of demand for Zizi perfume is 0.75. How much will sales change (increase/decrease) if prices are increased 12%? (Hint: use % formula) (Two decimals) Use your answer in a complete sentence. The sentence should start; for every 1% .....

2. When the price of Cipo is $6, producers are willing to produce 42 units and when the price increases to $10, producers are willing to supply 60 units. What is the price elasticity of supply for Cipo? (Hint: use midpoints formula.)(Two decimals) What will be the mathematical sign of your calculations and why?