Differentiate fixed costs and variable costs. 1  Total cost is the sum of fixed and variable costs.  Variable costs change according to the quantity of a good or service being produced. The amount of materials and labor that is needed for to make a good increases in direct proportion to the number of goods produced.
Chilean copper-mining company Antofagasta produced 370,000 tonnes of copper in 2016, a decrease from 2015âs total of 370,000 tonnes. In the first half of 2017, the company produced 346,300 tonnes of copper, a 7.1-percent increase over the same period in 2016.
Copperhead Agricultural Products, LLC was founded by Dave Terveen and Kevin Berg after the two discovered they had a unique combination of ideas and know-how. Dave is a full-time farmer and business owner in South Dakota; Kevin grew up on a farm and is a mechanical engineer and machine shop owner. Coffee-shop discussions of new ways to approach common challenges led to the creation of the Furrow CruiserÂ® spiked closing wheel.