OLR (Operational Leverage Ratio)

The metric that measures operational cost efficiency by dividing the percentage change in operating costs by the percentage change in revenue over a specified period.

An OLR below 1.0 indicates that operational costs are growing more slowly than revenue, which is the fundamental definition of scalable operations. 

An OLR above 1.0 means operational overhead is growing faster than the business, compressing margins regardless of top-line performance.