Social contract. Social contract, in political philosophy, an actual or hypothetical compact, or agreement, between the ruled and their rulers, defining the rights and duties of each. In primeval times, according to the theory, individuals were born into an anarchic state of nature, which was happy or unhappy according to the particular version.
Typical costs: 1  Technicians typically charge $50-$100 per hour for labor to work on the computer, but this varies by geographical location. 2  Costs for replacement hardware for Macs and PCs vary.  Motherboards range from $50 to more than $1,000 -- the more expensive models offer faster speeds and more ports.
Take the cost of the materials you used, and multiply it by 3, then figure out what you will charge for hourly labor ($7,$8, $9, ect... based on how experienced you are) and figure out how long it took you to create the object. Add the material cost x 3 to the labor cost.