Answer and Explanation:
 The preparation of the total differential cost schedule is presented below
 Schedule showing statement of total differential cost 
 Particulars Make the wheels Buy from trailblazers Differential cost 
Offer of trailblazer $220,000 $220,000 Higher
 (2000 × $110) 
Material cost $52,000 $52,000 Lower 
 ($26 × 2000) 
 Labor cost $106,000 $106,000 Lower 
 ($53 × 2000) 
 Variable overhead $42000 $42,000 Lower 
 ($21 × 2000) 
Fixed overhead $98000 $59,500 $38,500 Lower 
 ($49 × 2000) ($98,000 -$38,500) 
 Total cost $298,000 $279,500 ($18,500) Lower
By adding the total cost we can get the making cost, buying cost and differential cost