A. using the regular percentage change method, what is the price elasticity of supply starting at a price of $40 per umbrella and moving to a price of $60 per umbrella? 1000 b. using the regular percentage change method, when the price of umbrellas falls from $100 per umbrella to $80 per umbrella, the decrease in price is a -1.33 % decrease. the decrease in quantity supplied is a % decrease. therefore, the elasticity of supply is . c. if the elasticity of supply for umbrellas is 1.1, then an increase in the price of umbrellas of 20% will the quantity supplied by %.

Exercise 4-9presented below is information related to martinez corp. for the year 2017.net sales $1,399,500 write-off of inventory due to obsolescence $80,440cost of goods sold 788,200 depreciation expense omitted by accident in 2016 43,600selling expenses 65,800 casualty loss 53,900administrative expenses 53,500 cash dividends declared 43,300dividend revenue 22,100 retained earnings at december 31, 2016 1,042,400interest revenue 7,420 effective tax rate of 34% on all items exercise 4-9 presented below is information relateexercise 4-9 presented below is information relate prepare a multiple-step income statement for 2017. assume that 61,500 shares of common stock are outstanding. (round earnings per share to 2 decimal places, e.g. 1.49.)prepare a separate retained earnings statement for 2017. (list items that increase retained earnings first.)