The lower your CPA in relation to your LTV, the higher your profit will be. Cost Per Acquisition is a KPI that measures the success of various paid marketing channels such as PPC (pay per click), affiliate, display, social media, and content marketing.

Your average target CPA, is the traffic-weighted average CPA that your bid strategy optimized for. It includes the average of your device bid adjustments, ad group target CPAs, and any changes you've made to your target CPA over time.

In vehicle acrobatics, a wheelie, or wheelstand, is a vehicle maneuver in which the front wheel or wheels come off the ground due to sufficient torque being applied to the rear wheel or wheels, or rider motion relative to the vehicle.

A caster is an assembly that includes a wheel and a mount. Casters support and make it easy to maneuver carts, racks, dollies and other equipment. Casters come in different materials, wheel diameters, tread widths, load ratings and overall heights to give your equipment mobility in many kinds of work environment.