With sites like Wrapify and StickerRide, you can earn hundreds of dollars each month by simply driving around town. You’ll need to place an advertisement on your car and drive a certain number of miles every month. If you’re already on the road for work, travel, or school, advertising allows you to make extra cash without any extra time commitment.
Residual income is calculated as net income less a charge for the cost of capital. The charge is known as the equity charge and is calculated as the value of equity capital multiplied by the cost of equity or the required rate of return on equity. Given the opportunity cost of equity, a company can have positive net income but negative residual income.