Effectiveness

ef·fec·tive·ness /iˈfektivnəs/ noun the degree to which something is successful in producing a desired result; success.

Efficient

ef·fi·cient /əˈfiSHənt/ adjective achieving maximum productivity with minimum wasted effort or expense.

Earnings

earn·ings /ˈərniNGz/ noun money obtained in return for labor or services.