Ayala Inc. has conducted the following analysis related to its product lines, using a traditional costing system (volume-based) and an activity-based costing system. Both the traditional and the activity-based costing systems include direct materials and direct labor costs. Products Sales Revenue Traditional ABC
Product 540X 198,200 54,440 45,520
Product 137Y 158,700 49,090 39,290
Product 249S 83,190 11,290 30,010
Instructions
a) For each product line, compute operating income using the traditional costing system.
b) For each product line, compute operating income using the activity-based costing system.
c) Using the following formula, compute the percentage difference in operating income for each of the product lines of Ayala (round the percentage to two decimals):

Feedback systems do not always involve negative feedback. economic inflation, which is evidenced by continually rising prices, is a positive feedback system. a positive feedback control system, as shown on the right, adds the feedback signal to the input signal, and the resulting signal is used as the input to the process. a simple model of the price-wage inflationary spiral is shown on the right. add additional feedback loops, such as legislative control or control of the tax rate, to stabilize the system. it is assumed that an increase in workers’ salaries, after some time delay, results an increase in prices. under what conditions could prices be stabilized by falsifying or delaying the availability of cost-ofliving data? how would a national wage and price economic guideline program affect the feedback system?