Answer:
Material handling charges = $34
Step-by-step explanation:
Provided information,
We have the following details,
Since not provided, assumed profit margin is exclusive of the charges of material and labor provided.
Total labor charge = $320
Profit margin on labor = 10%
= $320
10% = $32
Material used = $120
Profit margin = 20%
Profit margin on materials = $120
20% = $24
Total including profit = $320 + $32 + $120 + $24 = $496
Total bill = $530
Less: Total of above cost components $496
Material handling charges = $34