Original sentence: In common usage, the word capitalism means an economic system in which all or most of the means of production are privately owned and operated (often for profit through the purchase and resale of inputs such as labour) and in which the investment of capital and the production, distribution and prices of commodities (goods and services) are determined mainly in a free market
Edited sentence: In common usage, the word capitalism means an economic system in which all or most of the means of production are privately owned and operated (usually for profit, and through employing labour for a fixed wage or salary), and in which the investment of capital and the production, distribution and prices of commodities (goods and services) are determined mainly in a free market