Division Q's current turnover is 12.0 and its return on sales ratio is 1.2. The division is considering a sales promotion that would increase its current return on sales ratio by 10%, but decrease its turnover by 10%.

Requirements

(a)	If the division undertakes this promotion, by what percentage would the return on investment increase or decrease?
(b)	If the division undertakes this promotion, by what percentage will the return on sales ratio need to increase in order for the return on investment to increase by 5%?