the with alingsi no derfects but a longer ordorprocossing decreased. Dransfieid's managers attribu? to in be produced, not the actual units produced. Selling and customer-service costs depend on the number. of customers that Bransfield can support, not the actual number of customers it serves. Dransfield has 50 customers in 2018 and 60 customers in 2019 . At the start of each year, managertent uses its discrefion to determine the number of advertising staff for tho year. Advertising staff and its costs have no: direct relationship with the quantity of ZP98 units produced and sold or the number of customers who buy ZP98. Required 1. Caiculate the change in operating income of Dransfield Company for 2018 and 2019. 2. Calculate the growth, price-recovery. and prodactivity components that explain the change in operating income from 2018 to 2019. 3. Comment on your answer in requirement 2 What do these components indicate