[jgoldfar]

*increase the denominator.

nitpick aside, agreed

[da_chicken]

The denominator is "resources," which here means "resource cost." Increasing resource cost reduces efficiency. You want to either increase the numerator ("performance") or decrease the denominator ("resources").

[barrkel]

Reducing the denominator is the other way to increase efficiency. The denominator is the number under the line, the divisor.