2015年7月24日债券型开放式基金净值收益排行

2015年7月24日债券型开放式基金净值收益排行一览表：

序号基金代码基金简称2015-07-232015-07-22日增长值日增长率手续费单位净值累计净值单位净值累计净值1000068民生加银转债优选C1.00801.39800.95701.34700.05105.33%0.00%2000067民生加银转债优选A1.01001.41000.95901.35900.05105.32%0.60%3161625融通标普中国可转债指数C1.25701.36701.19901.30900.05804.84%0.00%4161624融通标普中国可转债指数A1.26201.37201.20401.31400.05804.82%0.60%5161719招商可转债分级债券1.23801.64701.18501.59400.05304.47%0.60%6470058汇添富可转换债券A1.60001.67001.53301.60300.06704.37%0.60%7240018华宝可转债1.46071.46071.39981.39980.06094.35%0.60%8470059汇添富可转换债券C1.57501.64501.51001.58000.06504.30%0.00%9000536前海开源可转债债券0.97301.34300.93701.30700.03603.84%---10161826银华中证转债指数增强分级1.00101.28900.96501.26200.03603.73%0.60165809东吴转债1.11501.22001.07501.18000.04003.72%0.50310518申万可转换债券1.80701.95701.74301.89300.06403.67%0.60040022华安可转债债券A1.70101.70101.64501.64500.05603.40%0.60000081天治可转债C1.58001.58001.52801.52800.05203.40%0.00040023华安可转债债券B1.67201.67201.61701.61700.05503.40%0.00000080天治可转债A1.58901.58901.53701.53700.05203.38%0.60163817中银转债增强债券B2.51302.51302.43302.43300.08003.29%---18163816中银转债增强债券A2.55402.55402.47302.47300.08103.28%---19000004中海可转债C1.17501.38501.13801.34800.03703.25%0.00%20000003中海可转债A1.16401.37401.12801.33800.03603.19%0.60%21090017大成可转债增强债券1.61501.62501.56601.57600.04903.13%0.60%22202107南方广利债券C1.46101.64101.41701.59700.04403.11%0.00%23202105南方广利债券A/B1.48301.66301.43901.61900.04403.06%0.60%24710302富安达增强收益债券C1.55291.57291.51221.53220.04072.69%0.00%25710301富安达增强收益债券A1.57291.59291.53171.55170.04122.69%0.60%26630009华商稳定增利债券A1.57901.57901.54501.54500.03402.20%0.60%27160132南方永利C1.00401.46300.98301.44200.02102.14%0.00%28160130南方永利1年定期债券(1.00501.47100.98401.45000.02102.13%0.60%29630109华商稳定增利债券C1.54801.54801.51601.51600.03202.11%0.00%30000481华商双债丰利债券C1.30401.57401.27801.54800.02602.03%0.00%

什么是净值型投资产品？收益如何计算？