In the past two years at William Middletons tire dealership
In the past two years at William Middleton’s tire dealership, 125 and 175 high-performance radials, respectively, were sold in fall, 225 and 275 were sold in winter, 75 and 90 were sold in spring, and 210 and 225 were sold in summer. With a major expansion planned, Mr. Middleton projects sales next year to in-crease to 900 high-performance radials. What will the seasonalized demand be each season for these tires?
Solution
Next year total units sold would be 1100+900 = 2000
Hence we give proportional to each season as
| Highperf radials | 125 | 175 | |
| Sales(units) | |||
| Winter | 225 | 275 | 500 | 
| Spring | 75 | 90 | 165 | 
| Summer | 210 | 225 | 435 | 
| 510 | 590 | 1100 | 

