contract completion rate; contract ratio
Primarily used in real estate to refer to the percentage of contracts successfully concluded, often in the context of sales or rental agreements.
This month's contract completion rate rose by 5 points compared to last month.
In the real estate industry, the contract ratio is one of the key performance indicators.
Compound of 契約 (contract) and 率 (rate). The specific real estate usage likely developed from industry jargon.