noun
order acceptance rate; win rate
Business metric: the percentage of orders or deals won out of total opportunities. Common in sales and procurement contexts.
See also: 受注
今月の受注率は前月より5ポイント上がった。
This month's win rate rose by 5 points compared to last month.
営業チームは受注率を上げるために提案書を改善した。
The sales team improved their proposals to increase the order acceptance rate.
成約率 is a similar sales metric meaning 'contract closing rate', often used interchangeably with 受注率 in sales contexts.
Compound of 受注 (order receipt) + 率 (rate). The exact historical derivation is straightforward; the term is a modern business coinage.