How much of revenue goes to running costs?

In this calculator, operating expense ratio (OER) = operating expenses ÷ revenue for the same period. It shows how many cents of each revenue dollar are consumed by operating expenses before considering whether that cost base is strategically appropriate.

Operating Expense Ratio

There is no universal numeric benchmark for this decision. The right comparison depends on the industry, geography, business model, time period and exact metric definition. Use the business’s own history, economics and explicit target unless a verified benchmark matching that scope is available.

Operating Expense Ratio

OEE normally means Overall Equipment Effectiveness in manufacturing. MarginKoala does not use OEE as an accounting abbreviation for operating expense ratio; the historical URL slug remains for compatibility, but the finance metric shown here is OER / operating expense ratio.

Operating Expense Ratio

Not in this calculator. Use operating expenses as defined in your accounts and keep COGS separate. The denominator here is revenue, so changing the expense classification or denominator creates a different ratio and should not be compared as though it were the same metric.

Operating Expense Ratio