payoff period meaning in Chinese

回收期；回本期

Investment payoff period
投资回收期
After operation , t he annual sales income can reach 624 million yuan , income tax of 55 million yuan , profix after taxes of 111 million yuan . investment rate of profit and taxes is 21 . 7 % , internal profit rate befove taxes of 20 . 7 % , payoff period of 6 . 5 years . the profit and loss balance point is low and the project has stronger ability against risks
六经济和社会效益估算投产后，年销售收入62397万元，所得税5455万元，税后利润11076万元。投资利税率21 . 7 % ，内部收益率税前20 . 7 % ，投资回收期税前6 . 5年，盈亏平衡点低，具有较强的抗风险能力。