Discord - Free voice and text chat for gamers. As you can see from the link Discord is an app that it's designed to provide voice and text chat for free. Initially Discord was built for gamers, and have some features that are intended to make it comfortable for gamers to use the app.
See return on investment. return on investment (ROI) A generic term to define a number of analytical tools for measuring the financial benefits of an investment, including cash-on-cash, internal rate of return, equity dividend,and financial management rate of return.
Return On Equity. When financial analysts calculate the ROI of stockholders, they refer to their results as Return on Equity, or ROE. The concept, however, is the same. ROE equals the firm's net income after accounting for all expenses, divided by shareholder equity. You can multiply the result by 100 to turn it into a percentage. By scanning the ROE of different firms, investors can make a fair, apples-to-apples comparison.